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@@ajaysharma-hu2ed You calculated the wrong ratio; it should be b/m = 4/14. Upon further simplification, it becomes 2/7, n then put the value in the equation total will be 200.
50:00 sir thoda complex bna diya....Sir ish question ko easy kiya ja sakta tha...... Solution: if one pipe A is 6 time faster than another pipe B. It's mean ration b/w pipe A and pipe B ( A:b = 6:1) it's mean if Pipe A fill tank 6 liter in 1 minute than pipe B fill tank in 1 liter in 1 minute. According to Question: Pipe B complete fill tank in 28 minutes. it's mean cistern/tank capicity is 1 * 28 = 28 liter. if both pipe open in ( 6 + 1) than tank fill 7 liter in 1 minutes so that, cistern will be complete fill if both pipe open in 28 / 7 = 4 minutes. (Answer).
1:12:50 , it is said in question that both the pipes are opened together for 5 min , so instead of taking A+B = 5+4 = 9l / min. Sir has taken only A that is 5L per min. So instead of 5*5 it should have been 9*5= 45 then 100-45 =55 so on on completing the next steps we obtain 13.77 min.
Yeah after subtracting 45 from 100 we get 55 which divided by 4 gets us 13.75. Hence after that adding the 5min they worked together we get 18.75. So both of you are very wrong
@@Dev-0709 read the question (question is asking how long did it take for the second pipe to fill the remaining cistern after both the pipes were closed at 5 mins .so 45 is the amount of liquid filled in the cistern by both pipes for 5 mins after that remaining 55 is filled by second pipe so 55/4 is correct answer and this is what the question is asking )it would be stupid to add 5 mins to 13.75 because the 5 mins for second pipe is already been counted in 45(pipe1 (5liters/min)+pipe2 (4 liter/min))multiplied by 5(first five minutes in which both worked together)=(5+4)*5=45,and the remaining 55 is done by pipe 2 which is 55/4=13.75 .so 13.75 is the time that it takes to fill the remaining cistern.
Can any one explain 1st answer can u explain 20m +30b= 24m +16b 14b=4m B 7 _. = _ M. 4 20(4)+30(7) = 250 and 24(4)+16(7)= 150 Both are unequal no 41:42
i am not sure if you are asking for a solution but in case - 20m + 30b = 24m + 16b m / b = 14/4 = 7/2 m = 7 and b = 2 20*7 + 30 *2 = 140 + 60 = 200 For 2 men + 1 boy 2*7 + 1*2 = 14 + 2 = 16 200/16 = 12.5 or 12 1/2 days.
@@darshanchhajed Ratio of P:Q is 6:1 bcoz P fills 6 times faster than Q, so assume if Q fills 1 ltr/min then p must fill 6 ltr/min cuz 6 times faster. Now, Q takes 6 min to fill 6 ltrs bcoz 1 ltr/min yes ? but P only takes 1 min to fill 6 ltrs cuz 6ltr/min it can fill, so that means p takes 5 min lesser than Q to fill 6 ltrs. then use unitary method or cross multiplication method like: 5 min less = 6 ltrs 40 min less = M ltrs cross multiply gives - > 40 x 6 = 5 x M M = 240 / 5 = 48 ltrs, which is total capacity of tank. now, they ask how much time it will take if both fill together so add their ltr/mins i.e ( 6 ltr/min + 1 ltr/min = 7 ltr/min) now time taken by both to fill = total capacity / total ltr/min = 48 ltrs / 7 ltr/min = 6.8 which is also 6 6/7. ( 6/7 = 0.8) hope u understood now 👍
can you explain: A work was completed by three persons of equal ability, first one doing m hours for m days, second one doing n hours for n days (m and n being integers) and third one doing 16 hours for 16 days. The work could have been completed in 29 days by third person alone with his respective working hours. If all of them do the work together with their respective working hours, then they can complete it in about how many days?
A tub of 96 litres capacity had been filled with water by two taps A and B. A was opened for 2 hours longer than B was. If A was opened for as long as B was opened, and B was opened for as long as A was opened, then they would deliver 92 litres of water. If the two taps were opened simultaneously, the tub would be filled in 12 hours. What was the rate of A?
Sir, in question at the end of 5 min first pipe will be closed why didn't take it as (x-5), if second pipe x, you take it as 5 min only why sir what is the reason
Sir answer for the question at @1:14:19 is will be 16.25 min shouldn't it? Because question says that both pipes are opened together and so both have worked together for 5 min and then after 1st is cosed so work done is a=25(5*5)and b=20(4*5) and remaining 100-25-20= 65 and B alone has to fill 65,so 65/4= 16.25 min
doubt : Sreeji can stich a suit in 3 hours less time than Premji. Sreeji stitches it alone for 4 hours and then Premji takes over and completes it. If altogether 14 hours were required to stich the shuit, how many hours would Premji take to stitch the same alone?
How to solve this given problem? A is twice efficient as B. A and B together do the same work in as much time as C and D can do together. If the ratio of the number of alone working days of C to D is 2:3 and if B worked 16 days more than C, then find the number of days which A worked alone. Please help 🙏
same problem, even if its written "after 5 mins " then also answer should be 13.5 mins left to fill the left tank + 5mins so total 18.5mins , right?@@anmolsarwan4744
The answer for the sum 210 days 15 men answer is wrong should be 50 days.......they said end 100 days not starting so starting 110 days 18.47 sec in video
Four men and six women together can complete a piece of work in six days. Six men and four boys can complete the work in six days. Nine women and twelve boys can complete the work in four days. In how many days can four men, six women and eight boys complete the work?
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41:50 hw1 . answer is 12 1/2 days
Hw2. Answer. 6 6/7 min
1st answer can u explain
20m +30b= 24m +16b
14b=4m
B 7
_. = _
M. 4
20(4)+30(7) = 250 and
24(4)+16(7)= 150
Both are unequal no
41:42
@@ajaysharma-hu2ed You calculated the wrong ratio; it should be b/m = 4/14. Upon further simplification, it becomes 2/7, n then put the value in the equation total will be 200.
Home work answer
HW-1) 12.5 days
HW-2) 6(6/7) mins
41:50 HW-1 :- 12 1/12 days and HW-2 :- 6 6/7 min. 🔥
how u got 12 1/2 in first question
@@simranKosalCan u explain plz
50:00 sir thoda complex bna diya....Sir ish question ko easy kiya ja sakta tha......
Solution:
if one pipe A is 6 time faster than another pipe B. It's mean ration b/w pipe A and pipe B ( A:b = 6:1)
it's mean if Pipe A fill tank 6 liter in 1 minute than pipe B fill tank in 1 liter in 1 minute.
According to Question:
Pipe B complete fill tank in 28 minutes. it's mean cistern/tank capicity is 1 * 28 = 28 liter.
if both pipe open in ( 6 + 1) than tank fill 7 liter in 1 minutes so that,
cistern will be complete fill if both pipe open in 28 / 7 = 4 minutes. (Answer).
But 4mins. wasn't in the option
1:12:50 , it is said in question that both the pipes are opened together for 5 min , so instead of taking A+B = 5+4 = 9l / min. Sir has taken only A that is 5L per min. So instead of 5*5 it should have been 9*5= 45 then 100-45 =55 so on on completing the next steps we obtain 13.77 min.
exactly
Yeah after subtracting 45 from 100 we get 55 which divided by 4 gets us 13.75. Hence after that adding the 5min they worked together we get 18.75. So both of you are very wrong
was searching for this correction
@@Dev-0709 read the question (question is asking how long did it take for the second pipe to fill the remaining cistern after both the pipes were closed at 5 mins .so 45 is the amount of liquid filled in the cistern by both pipes for 5 mins after that remaining 55 is filled by second pipe so 55/4 is correct answer and this is what the question is asking )it would be stupid to add 5 mins to 13.75 because the 5 mins for second pipe is already been counted in 45(pipe1 (5liters/min)+pipe2 (4 liter/min))multiplied by 5(first five minutes in which both worked together)=(5+4)*5=45,and the remaining 55 is done by pipe 2 which is 55/4=13.75 .so 13.75 is the time that it takes to fill the remaining cistern.
Yesss
The problem is cat question are not of a fixed type they will combine all the question types to make 1 crazy question. That’s the hard part
57:00 answer B 6.85 minutes
I always solve by random approach and it hardly takes few seconds ❤
Have u got selected into top B school
your teaching is so amazing sir..... Thankyou so muchhh ❤❤
Can any one explain
1st answer can u explain
20m +30b= 24m +16b
14b=4m
B 7
_. = _
M. 4
20(4)+30(7) = 250 and
24(4)+16(7)= 150
Both are unequal no
41:42
i am not sure if you are asking for a solution but in case -
20m + 30b = 24m + 16b
m / b = 14/4 = 7/2
m = 7 and b = 2
20*7 + 30 *2 = 140 + 60 = 200
For 2 men + 1 boy
2*7 + 1*2 = 14 + 2 = 16
200/16 = 12.5 or 12 1/2 days.
7b = 2m hoga if 14b= 4m
mba wallah please upload all videos or full videos with every type of questions. You onlt taught 65% type of question .
How can we know that question is all about efficiency of the workers ,if the information is not given ?
Ans h.w 1 :- (d)
Ans h w 2 : (b)
Great lecture. 👍👍👍
Thanks 🙏🙏🙏
Homework question answer is
(1)D
(2)B
Y answer 12.5 kaise aaya h aap smjha skte ho mera twd nhi aarha correct
@@khushichauhan6976 400 - twd
The standard approach was actually easy. But here all the questions are solved in random approach. Bounced
I also solved questions by standard approach
But i think random approach was much better than standard approach.... because of calculation
❤
Sso true 😢
If it was that easy then do it yourself
hw1: 12.5days
hw2:48/7
Aa hi nhi rha ans💀
@@prathamsupal3276konsa vla?
Hw1= 12.5
Hw2 = 6(6/7)
Explain HW2
@@darshanchhajed Ratio of P:Q is 6:1 bcoz P fills 6 times faster than Q, so assume if Q fills 1 ltr/min then p must fill 6 ltr/min cuz 6 times faster. Now, Q takes 6 min to fill 6 ltrs bcoz 1 ltr/min yes ? but P only takes 1 min to fill 6 ltrs cuz 6ltr/min it can fill, so that means p takes 5 min lesser than Q to fill 6 ltrs.
then use unitary method or cross multiplication method like:
5 min less = 6 ltrs
40 min less = M ltrs
cross multiply gives - > 40 x 6 = 5 x M
M = 240 / 5 = 48 ltrs, which is total capacity of tank.
now, they ask how much time it will take if both fill together so add their ltr/mins i.e ( 6 ltr/min + 1 ltr/min = 7 ltr/min)
now time taken by both to fill = total capacity / total ltr/min = 48 ltrs / 7 ltr/min = 6.8 which is also 6 6/7. ( 6/7 = 0.8)
hope u understood now 👍
HW2= 48/7 (B)
Nahi 6 6/7 hoga
hw one - 12 1/2
hw two - 6 6/7
Sir homework 2 answers 6,6/7
HW 1 - 12(1/2)
HW 2 - 6(6/7)
very nice explanation sir . op as always.
57:10 hw(2): 6 ⁶/⁷
can you explain:
A work was completed by three persons of equal ability, first one doing m hours for m days, second one doing n hours for n days (m and n being integers) and third one doing 16 hours for 16 days. The work could have been completed in 29 days by third person alone with his respective working hours. If all of them do the work together with their respective working hours, then they can complete it in about how many days?
13
U r excellent sir. Thanks alot sir🙏
Cat nikla ky?
very great session superbbbbbbb amazing
A tub of 96 litres capacity had been filled with water by two taps A and B. A was opened for 2 hours longer than B was. If A was opened for as long as B was opened, and B was opened for as long as A was opened, then they would deliver 92 litres of water. If the two taps were opened simultaneously, the tub would be filled in 12 hours. What was the rate of A?
0.5 litres per minute valuer of A
which video to watch for using options while answering ?
sir , at 54:58 the question please explain through standard method
42:12 HW OPTION 'D' ANS
54.13 pr kyaa hum ques ko
Total work done [1*x = (x-60)3] karke kar sakte hai kyaa, where x is no of days taken by B to finish the job
Is this helpful for cmat exam also ??? Plz anyone answer
This ddp solution make my concept crystal clear!!
Where can I find ddp
wat is ddp?
This dpp was quite hard ...please bring the solution of this dpp in your next dpp solution class sir
Have u join any batch of PW for preparation?
Sister can you share the link of dpp here
@@shrutishrivastava696download the pw app sister
arey bhai 🥴🥴🤧🤕🤒🤒 1:10:50 aur yahan hum difference nikalkar soch rhe ab isklo kaise balance out kare bache huye ko
HW 1= 12.5 HW 2= 6.85
1-d?
Sir Arun aur vinay wale question me total work done 21 kaise man liya
Homework 1:-
The answer is option 'D'.
And of homework 2:- It's 'B'.
Sir aapne konsi video ka reference diya jisme option ki help Lena sikhaya.
Aapki Awaaz ajeebsi aa rahi thi us line pe
Sir, in question at the end of 5 min first pipe will be closed why didn't take it as (x-5), if second pipe x, you take it as 5 min only why sir what is the reason
Same question
Good video but complex hofaya aaj sirf video dekhti reh gayi rahul sir to this video🙏🥶😭
46:33 how the total work done is 21 units.can anyone explain
A+V=7 days
Arun works twice as much as work as vinay so,...A:V=2:1
2+1=3
7*3=21 total work
@@Ajithachu001 thnx bro❤️
❤ too good sir
Sir answer for the question at @1:14:19 is will be 16.25 min shouldn't it? Because question says that both pipes are opened together and so both have worked together for 5 min and then after 1st is cosed so work done is a=25(5*5)and b=20(4*5) and remaining 100-25-20= 65 and B alone has to fill 65,so 65/4= 16.25 min
Yes I was also thinking same.. answer should be 16.25
Yeah.. But you also read question wrong. The Q says At the end of 5 minutes.. See
Bro. 100-45 is 55 not 65
@@chirag-sg4kdhow
so what will be the final ans?
Homework 2 Ans 48/7 option b
doubt : Sreeji can stich a suit in 3 hours less time than Premji. Sreeji stitches it alone for 4 hours and then Premji takes over and completes it. If altogether 14 hours were required to stich the shuit, how many hours would Premji take to stitch the same alone?
15.58
The kind of clarity he has while he teaches is superb and of course his style of teaching, it's just fantastic!
Keep up the great work Vinit sir!
How to solve this given problem?
A is twice efficient as B. A and B together do the same work in as much time as C and D can do together. If the ratio of the number of alone working days of C to D is 2:3 and if B worked 16 days more than C, then find the number of days which A worked alone.
Please help 🙏
Is answer 80 days??
18 days
Answer will be 18 days since A+B AND C+D work is equal you can equalize them in form of a equation and solve them.
@@SHELDONCOOPER-k7t thank you.
Have u join PW mba batch?
1st -12.5
2nd- 6 6/7
42:50 answers 12.5 days
How
1st answer can u explain
20m +30b= 24m +16b
14b=4m
B 7
_. = _
M. 4
20(4)+30(7) = 250 and
24(4)+16(7)= 150
Both are unequal no
HW - 2 :- 6 (6/7)
How to solve 2nd hw?
Great lecture sir! 👍
sir sach me apke assumption trick ne question ko halwa bna dia thanku so much sir
Sir apka lecture sirf lod -1 k liye hi h please 🙏 Lod-2 k liye bhi bta Diya kro kbhi to please sir 🙏🙏
HW 2 :-A 56:58
tqq sir🙏🙏
The SECOND LAST sum is wrong...!! Answer will be 13.889 mins. Please verify.
Go study
Wd aur Md nai samjh aaya sir 40:00 pe
Homework 2 :- (B) 48/7 min
25/2 days 1st answer = 12 1/2 days
not getting efficency questions home work no. 2
Ans.H.W2. 6.85minute
1:15:33 sir... I think you read wrong. The Q says At the end of 5 minute not after the 5 minute
yes, I also think so both were working together for 5 mins and then one was turned off.
it should be 16.25
same problem, even if its written "after 5 mins " then also answer should be 13.5 mins left to fill the left tank + 5mins so total 18.5mins , right?@@anmolsarwan4744
home work 2 answer is option B 6 6\7
HW1 = ANS.D(12 .5)
how ?
Homework 1 :- (D) 12.5 days
39:00 🙂🙂
Sir how to solve this ques
The best approach for efficiency based problem = total no days together(n+1)/2 where n is rate if efficiency. Ex 7(2+1)/2= 21/2 = 10.5
Explain kr
elaborate pls?
42:01 D answer
2 men and 3 boys can do a piece of work in 10 days answer - d) 12.5 days
Thank you sir
H1: 12.5
42:01 would be option D
Sir, last ques me direct kyu nhi kr skte like teeno eqns ko add krke then, find the time..
Sir homework 1 answers 12,1/2
HW1= d HW2=b
Kaisa aaya Bhai 12 1/2
Homework 1.. ans 25/2
Love you sir ❤❤😢
hw 2 : 6*(6/7)
Sir you have not uploaded the concept of circular track, constant distance and time.
Homework question Answer 1 - 12.5
12 (1/2 )days
6(6/7) mins
Homework
1) d)
2) b)
41:52
1 HW 12.5
2 HW 6.857
can you explain 2nd answer
homework Question 1 ka
Answer - 12 1/2
The answer for the sum 210 days 15 men answer is wrong should be 50 days.......they said end 100 days not starting so starting 110 days 18.47 sec in video
home work-1-12.5
HW:
1) 12 1/2
2) 6 6/7
hw no. 2 7 min answer
sir ans of 3 rd question is 50 days
55:55
Iska ans nhi aa rha hai
Four men and six women together can complete a piece of work in six days. Six men and four boys can complete the work in six days. Nine women and twelve boys can complete the work in four days. In how many days can four men, six women and eight boys complete the work?
Hw 1~> d
Hw 2-> b
DPP question 13 bohat difficult laga sir, could not understand for some reason. I did by assumption approach.
whats up dude have u crack cat
Sir I love your teaching style