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RK Eduworld (Classic)
India
เข้าร่วมเมื่อ 24 พ.ค. 2021
Raj Krishna Choudhary
Engineering Mathematics
A PYQ Junction for-
JEE Main
NDA
WBJEE
ICAR (PCM)
VITEEE
EAMCET
GUJCET
KEAM
KCET
BITSAT
COMEDK
Engineering Mathematics
A PYQ Junction for-
JEE Main
NDA
WBJEE
ICAR (PCM)
VITEEE
EAMCET
GUJCET
KEAM
KCET
BITSAT
COMEDK
A man bought three articles for ₹ 3,000 each. He sold the articles respectively at 10% profit, 5%
Problem: A man bought three articles for ₹ 3,000 each. He sold the articles respectively at 10% profit, 5% profit and 15% loss. The total percentage profit/loss he earned is:
Welcome to RK Eduworld Classic!
I’m Raj Krishna Choudhary, and this channel is your go-to source for Engineering Mathematics, Reasoning, and Competitive Exam Preparation. My applied mathematics content follows the Amity University syllabus, making it a great resource for students.
🔥 Popular Playlists
Engineering Mathematics: From Calculus to Linear Algebra
Reasoning: Boost your aptitude and logic skills with new videos
Amity University Syllabus: Tailored content for Applied Mathematics courses
Competitive Exams: JEE, NDA, BITSAT, KEAM, and more-previous year questions & solutions
On this channel, you’ll only find easy problems explained in a simple way. For harder or moderate problems, you can explore other great channels on TH-cam.
Check out my shorts for quick problem-solving tips!
Subscribe and turn on notifications for the latest updates.
Got a question? Drop it in the comments-I’m here to help!
More content?
Visit my second channel, RK Edugalaxy, for detailed tutorials and study strategies.
#EngineeringMaths #AmityUniversity #Reasoning #CompetitiveExams #MathShorts #RKEdugalaxy #JEEPrep #NDAExam #AppliedMathematics
Welcome to RK Eduworld Classic!
I’m Raj Krishna Choudhary, and this channel is your go-to source for Engineering Mathematics, Reasoning, and Competitive Exam Preparation. My applied mathematics content follows the Amity University syllabus, making it a great resource for students.
🔥 Popular Playlists
Engineering Mathematics: From Calculus to Linear Algebra
Reasoning: Boost your aptitude and logic skills with new videos
Amity University Syllabus: Tailored content for Applied Mathematics courses
Competitive Exams: JEE, NDA, BITSAT, KEAM, and more-previous year questions & solutions
On this channel, you’ll only find easy problems explained in a simple way. For harder or moderate problems, you can explore other great channels on TH-cam.
Check out my shorts for quick problem-solving tips!
Subscribe and turn on notifications for the latest updates.
Got a question? Drop it in the comments-I’m here to help!
More content?
Visit my second channel, RK Edugalaxy, for detailed tutorials and study strategies.
#EngineeringMaths #AmityUniversity #Reasoning #CompetitiveExams #MathShorts #RKEdugalaxy #JEEPrep #NDAExam #AppliedMathematics
มุมมอง: 5
วีดีโอ
A shopkeeper buys 60 oranges at 10 for Rs 72, and an equal number at 12 for Rs 90. He spends Rs 118
มุมมอง 122 ชั่วโมงที่ผ่านมา
Problem: A shopkeeper buys 60 oranges at 10 for Rs 72, and an equal number at 12 for Rs 90. He spends Rs 118 on the transaction and sells all the oranges that he buys. If there is a profit of 26% in the entire transaction, then what is the selling price of 32 oranges? Welcome to RK Eduworld Classic! I’m Raj Krishna Choudhary, and this channel is your go-to source for Engineering Mathematics, Re...
A person bought some articles at the rate of 11 for ₹10 and bought the same number of articles at
มุมมอง 154 ชั่วโมงที่ผ่านมา
Problem: A person bought some articles at the rate of 11 for ₹10 and bought the same number of articles at the rate of 9 for ₹10 and sold all the stock at the rate of 1 for ₹1. Find the profit or loss %. Welcome to RK Eduworld Classic! I’m Raj Krishna Choudhary, and this channel is your go-to source for Engineering Mathematics, Reasoning, and Competitive Exam Preparation. My applied mathematics...
A person bought some articles at the rate of 11 for ₹10 and sold them at the rate of 10 for ₹11.
มุมมอง 117 ชั่วโมงที่ผ่านมา
Problem: A person bought some articles at the rate of 11 for ₹10 and sold them at the rate of 10 for ₹11. Find the profit/loss %. Welcome to RK Eduworld Classic! I’m Raj Krishna Choudhary, and this channel is your go-to source for Engineering Mathematics, Reasoning, and Competitive Exam Preparation. My applied mathematics content follows the Amity University syllabus, making it a great resource...
A shopkeeper sold an article for ₹ 455 at a loss (in ₹). If he sells it for ₹ 490, then he would
มุมมอง 189 ชั่วโมงที่ผ่านมา
Problem:A shopkeeper sold an article for ₹ 455 at a loss (in ₹). If he sells it for ₹ 490, then he would gain an amount four times the loss. At what price (in ₹) should he sell the article to gain 25%? Welcome to RK Eduworld Classic! I’m Raj Krishna Choudhary, and this channel is your go-to source for Engineering Mathematics, Reasoning, and Competitive Exam Preparation. My applied mathematics c...
There are 2 friends Neeraj and Deepak. Neeraj calculates his profit % on SP whereas Deepak calculate
มุมมอง 3212 ชั่วโมงที่ผ่านมา
Problem: There are 2 friends Neeraj and Deepak. Neeraj calculates his profit % on SP whereas Deepak calculates his profit % on CP. If both claim to make 20% profit and the difference between there actual profit is ₹ 100 and the SP of both is same. Find their SP. Welcome to RK Eduworld Classic! I’m Raj Krishna Choudhary, and this channel is your go-to source for Engineering Mathematics, Reasonin...
On selling an article for ₹ 800, a person loses 20% of its selling price. At what price should he...
มุมมอง 1614 ชั่วโมงที่ผ่านมา
Problem: On selling an article for ₹ 800, a person loses 20% of its selling price. At what price should he sell it to gain 25% on its cost price? Welcome to RK Eduworld Classic! I’m Raj Krishna Choudhary, and this channel is your go-to source for Engineering Mathematics, Reasoning, and Competitive Exam Preparation. My applied mathematics content follows the Amity University syllabus, making it ...
By selling 25 metres cloth Rahul gains the selling price of 5 metres. What is her gain percent?
มุมมอง 2216 ชั่วโมงที่ผ่านมา
Welcome to RK Eduworld Classic! I’m Raj Krishna Choudhary, and this channel is your go-to source for Engineering Mathematics, Reasoning, and Competitive Exam Preparation. My applied mathematics content follows the Amity University syllabus, making it a great resource for students. 🔥 Popular Playlists Engineering Mathematics: From Calculus to Linear Algebra Reasoning: Boost your aptitude and log...
By selling 33 metres cloth Promit gains the cost price of 11 metres. What is his gain percent?
มุมมอง 2719 ชั่วโมงที่ผ่านมา
Welcome to RK Eduworld Classic! I’m Raj Krishna Choudhary, and this channel is your go-to source for Engineering Mathematics, Reasoning, and Competitive Exam Preparation. My applied mathematics content follows the Amity University syllabus, making it a great resource for students. 🔥 Popular Playlists Engineering Mathematics: From Calculus to Linear Algebra Reasoning: Boost your aptitude and log...
The difference between cost price and selling price of an article is ₹360. If the profit is 20%, the
มุมมอง 1921 ชั่วโมงที่ผ่านมา
Problem: The difference between cost price and selling price of an article is ₹360. If the profit is 20%, the selling price is: Welcome to RK Eduworld Classic! I’m Raj Krishna Choudhary, and this channel is your go-to source for Engineering Mathematics, Reasoning, and Competitive Exam Preparation. My applied mathematics content follows the Amity University syllabus, making it a great resource f...
When an article is sold for ₹355, there is a loss of 29%. To gain 21%, it should be sold for
มุมมอง 22วันที่ผ่านมา
Problem:When an article is sold for ₹355, there is a loss of 29%. To gain 21%, it should be sold for #tcs #ssc Welcome to RK Eduworld Classic! I’m Raj Krishna Choudhary, and this channel is your go-to source for Engineering Mathematics, Reasoning, and Competitive Exam Preparation. My applied mathematics content follows the Amity University syllabus, making it a great resource for students. 🔥 Po...
A can do a piece of work in 4 hours; B and C together can do it in 3 hours, while A and C together .
มุมมอง 11วันที่ผ่านมา
Problem: A can do a piece of work in 4 hours; B and C together can do it in 3 hours, while A and C together can do it in 2 hours. How long will B alone take to do it? Welcome to RK Eduworld Classic! I’m Raj Krishna Choudhary, and this channel is your go-to source for Engineering Mathematics, Reasoning, and Competitive Exam Preparation. My applied mathematics content follows the Amity University...
A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in
มุมมอง 10วันที่ผ่านมา
Problem: A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work? Welcome to RK Eduworld Classic! I’m Raj Krishna Choudhary, and this channel is your go-to source for Engineering Mathematics, Reasoning, and Competitive Exam Preparation. My applied mathematics content follows the Amity University ...
A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the
มุมมอง 7วันที่ผ่านมา
Problem: A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day? Welcome to RK Eduworld Classic! I’m Raj Krishna Choudhary, and this channel is your go-to source for Engineering Mathematics, Reasoning, and Competitive Exam Preparation. My applied mathematics content follows the Amity University syl...
A can do a piece of work in 15 days and B in 20 days. If they together work on it for 4 days, then..
มุมมอง 1214 วันที่ผ่านมา
A can do a piece of work in 15 days and B in 20 days. If they together work on it for 4 days, then the fraction of the work that is left is: Integration: th-cam.com/play/PLOxDDktsWz_m2G98jUbk5CKzsNwuC5vri.html Trigonometry: th-cam.com/play/PLOxDDktsWz_lmJVcOsUQiRPh_LUdujrNl.html I hope u enjoyed the video and learnt something. Do share your queries, doubts, suggestions and other things in the c...
18,8,27,16,45,24,?,32,108 | Missing Number | Campus Placement Questons
มุมมอง 714 วันที่ผ่านมา
18,8,27,16,45,24,?,32,108 | Missing Number | Campus Placement Questons
"Unlock the Hidden Pattern in This Tricky Puzzle-Can You Outsmart It?"
มุมมอง 714 วันที่ผ่านมา
"Unlock the Hidden Pattern in This Tricky Puzzle-Can You Outsmart It?"
"99% Fail Instantly: Can You Outsmart This Viral Puzzle Challenge?"
มุมมอง 2114 วันที่ผ่านมา
"99% Fail Instantly: Can You Outsmart This Viral Puzzle Challenge?"
You Only Have 30 Seconds to Solve This Puzzle!
มุมมอง 1314 วันที่ผ่านมา
You Only Have 30 Seconds to Solve This Puzzle!
98% Can't Crack This Puzzle-Are You the 2%? 🔥
มุมมอง 2014 วันที่ผ่านมา
98% Can't Crack This Puzzle-Are You the 2%? 🔥
Are You a Math Genius? This Puzzle Will Prove It!
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Are You a Math Genius? This Puzzle Will Prove It!
Are You Smarter Than a 5th Grader? Try This Puzzle!
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"Mind-Bending Number Puzzle: What’s the Missing Value?"
มุมมอง 1521 วันที่ผ่านมา
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If REASONING is coded as 111, how will APTITUDE be coded as in the same language?
มุมมอง 2021 วันที่ผ่านมา
If REASONING is coded as 111, how will APTITUDE be coded as in the same language?
In a certain code language, "MENTOR" is coded as "EMOUPS" and "OCTAGON" is coded as "COUBHPO".
มุมมอง 1621 วันที่ผ่านมา
In a certain code language, "MENTOR" is coded as "EMOUPS" and "OCTAGON" is coded as "COUBHPO".
The ratio of number of boys to that of girls in a group becomes 2 : 1 when 15 girls leave....
มุมมอง 1128 วันที่ผ่านมา
The ratio of number of boys to that of girls in a group becomes 2 : 1 when 15 girls leave....
If 60% of A= 30% of B, B= 40% of C, C= x% of A, then x= | Percentages | SSC| Placements| UPSC
มุมมอง 4228 วันที่ผ่านมา
If 60% of A= 30% of B, B= 40% of C, C= x% of A, then x= | Percentages | SSC| Placements| UPSC
Sir can you tell us how we can identify what we have to add and subtract
half the coefficient of x. that will be the number whose square is to be added and subtracted. Watch out: th-cam.com/video/OkCaOrJFVwE/w-d-xo.htmlsi=c-KWKJmFixkvRO5s
Sir, where did log e go? Please I do not understand. When we differentiate logarithm, don't we get log e also?
No. That is for exponential function
Thank you 😊.
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Thank you so much sir ❤
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Thank you🙂👍
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If q^2 is represented as 't'. Then instead of q^2 there should be t in the steps right ?
from where you are telling q² as t?
@rkchy dow^2 z / dow y^2 is represented as 't' right. I mean the notations p,q,r,s,t. Correct me if I'm wrong.
you may check from this: th-cam.com/video/HzvZJipNcNo/w-d-xo.htmlsi=ljalQMjIZf-gGCTi
Great explanation ❤
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Solve the general solution d²y/dx² + 4y = 12x² - 16xcos2x. Please solve this problem.
Bilkul ache se samjh nhi aaya
can we differentiate twice wrt to y ??
How will that help a² will still be there
Bro it was too lengthy 🥴 instead try eliminating x that would be more easy
Good morning sir Sir can you please solve this problem for me D⁴y+(m²+n²)D²y+m²n²y=0
kabtak chahiye? Engineering math kiye hue bahut din ho gaye dekhna hoga try karke
@@rkchy Thanks sir but i solved it now. Thanks a lot sir for your consideration
kaise kiya hint dedo thora age kam ayega
@@rkchy since D⁴ and (mn)² are perfect square the equation can be written as (D²+n²)(D²+m²) then solve by the method
69
Thank u very much sir 🙏🙏🙏🙏🙏🙏🙏
Sir why we have put the value 0.1 instead of 1.1?
I just kept x as 1.1 to get log 1.1 rest in RHS 0.1 you are getting just because its x-1 everywhere.
@rkchy okay got it sir thank you so much.
@@bhaktibalapurkar sir jate jate mera dusra channel subscribe kardo th-cam.com/video/m5qWlzhE6bg/w-d-xo.htmlsi=9nzQREQcRU572noj
Vanakkam da mapla
Vanakkam da mapla! Nalama?
Thank you sir I was locked in d(zy)
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Thanks
Are pehle explain toh kro aise mujhe bhi aata hai likhne ko
❤thank u
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It confusing
solve few more questions of the same type
thank you very much😌😌🥳🥳
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Sir why you multiply with 1/x 1/y and 1/z i cant understand 😢
Those are multipliers that satisfy lagrange's equation so that we can further solve easily.
sir ap ne ye question kis book se lia ha ??
yad nahi hk das me try karo yafir MD raisinghania
q2 will have a self loop of a
I can't understand 😢
Go step by step and learn properties first
I can't understand 😢
I can't understand 😢
Thank you teacher, this helped a lot!
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Well define!
Aap galat hai sir😡😡
sahi answer bataiye sir
Thank you so much sir
Thankyou so much for the help la sir!
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Thank you
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Thank you so much
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Thank you sir
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Sin^2t / t^2 please find sir 😢
isi me division by t ek bar aur lagado
2 - cos2t / t yesa hi ky sir
@@prathameshnavale07 ure jitne bar t se divide utne bar s se infinity integrate.
it's ok to have "a" in the pde ? ? isn't it an arbitrary constant... and hence shouldn't be a part of the pde
Here our target was to remove arbitary function and we did it.
😂😢😂😢😢😂😢😂😢😂😢😂😢😢😂😢😂😢😂😢😂😢😢😂😢😂😢😂😢😂😢😂😢😢😂😢😂😢😂😢😂😢😢😂😢😂😢😂😂😂😂😢😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂❤❤❤❤❤❤❤❤❤❤❤❤😂😂😂😂😂❤❤❤❤❤❤❤❤❤😢❤😢❤😢😢❤😂😂❤❤❤❤❤😂😢😢🎉🎉🎉🎉🎉❤❤❤🎉🎉❤❤🎉🎉❤🎉❤🎉❤🎉🎉❤🎉❤🎉❤❤🎉🎉❤🎉
Finally solved ho Gaya 😅
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Mem dawai karwa le Sardi ho gai h aapko
Mam ❌ Sir ✅ Purana video hai ab dawai kyo khaye
@@rkchy kese kese log rehte h internet pe😂
@@PiyushPatel-ke5on dawai nahi bik raha hoga to yaha bech rahe
Thank you si🎉🎉❤❤❤r
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Quite lengthy question nice explanation
All doubts clear! Thanks
solve the pde (x²+y²)p 2xyq=z(x+y)...help me in this
I will solve it later till then refer to MD Raisinghania book for sol
Yha tk bn gya h but ans. M doubt h sir 😂
To bhai ek kaam karo jara ye wala question solve karke dikha o baati hu ruko ye LCM hai 10,12,15 nikale dikha o❤
10= 2¹*5¹ 12= 2²*3¹ 15= 3¹*5¹ LCM= 2²*3¹*5¹= 60 (taking highest power of all factors and multiplying)
I hope that by replacing my c1 in the solution I'm still right?
you can replace it by x/y