37:55 we can solve this question directly by normal/ basic method Boys= 15 Girls =30 Girls science average is 2/3 more that is If avg score of boys in science is 3 then girls avg score in science will be 5 Take them as 3x and 5x Now come to basic method LHS= RHS😂 Total score of all the students in science = Total score of boys of science + Total score of girls in science 78*45= 15*3x + 30*5x 78*45=45x+150x 78*45=195x x= 18 Answer= avg score of girls in science ie. 5*18=90 simple and easy😅
I agree your method is pretty faster. I used the usual method. Thank you for mentioning it. Sorry for the trouble. 3X x 15 + 5X x 30 =78 x 45 3X+5X=78 x 3 X= 18 So Answer = 5x18=90
DEAR mam...in this video you discussed ...Q).36... using angle conditions........CAN YOU PLEASE DO ONE VIDEO FOR.......GEOMENTRY PROPERTIES & TRICKS....
Explanatory videos take lil time to prepare. This month I dont have time. I have updated complilations of geometry questions . You can check it on playlist. I can update you the topic next month.
Grateful for your work mam...such a nice explanation..but one kind request mam kindly make a complete course video for SSC CGL ( quants + reasoning)as the notification will be in April
37:55 we can solve this question directly by normal/ basic method
Boys= 15 Girls =30
Girls science average is 2/3 more that is
If avg score of boys in science is 3 then girls avg score in science will be 5
Take them as 3x and 5x
Now come to basic method
LHS= RHS😂
Total score of all the students in science = Total score of boys of science + Total score of girls in science
78*45= 15*3x + 30*5x
78*45=45x+150x
78*45=195x
x= 18
Answer= avg score of girls in science ie. 5*18=90 simple and easy😅
I agree your method is pretty faster.
I used the usual method. Thank you for mentioning it. Sorry for the trouble.
3X x 15 + 5X x 30 =78 x 45
3X+5X=78 x 3
X= 18
So Answer = 5x18=90
last problem can be done even faster😊
Yeah I think I did it without thinking. I used the usual method. But without explanation you can do it even more faster. Explanation takes lil time.
This one is pretty faster. I used the usual method. Sorry for the trouble.
3X x 15 + 5X x 30 =78 x 45
3X+5X=78 x 3
X= 18
So Answer = 5x18=90
@@PremierMath and even faster Mam by taking the ratios itself not the numbers in case of students 😀
DEAR mam...in this video you discussed ...Q).36... using angle conditions........CAN YOU PLEASE DO ONE VIDEO FOR.......GEOMENTRY PROPERTIES & TRICKS....
Explanatory videos take lil time to prepare. This month I dont have time. I have updated complilations of geometry questions . You can check it on playlist. I can update you the topic next month.
Mam do u provide entire course for SSC CGL in app ?
I want to provide it. But need time
Grateful for your work mam...such a nice explanation..but one kind request mam kindly make a complete course video for SSC CGL ( quants + reasoning)as the notification will be in April