Question

Monika bought 100 chickens each for Rs.80 and sold 20 of them at a gain of 5%. At what gain percent must she sell the remaining chivkens. so as to gain 20% on the whole?

Answer 1

100*80=8000 =c.p
20% on 8000 makes to 1600 that is she must sold dem at 9600
She already sold 20 at 5 % gain
80*20=1600 is c.p 1600*5%=80
80+1600=1680 is your s.p for 20
Now u need to make it to
9600-1680= 7920
The original cp was for 80 chickens
80*80=6400 but to make 20% gain on while she needs to make 9600 from which alredy 20 chicks are sold at 5%
Now original cp for 60 Chickens
6400 but to make gain 7920 is to be made
Therefore,7920-6400=1520
Now calculate what % is 1520 on cp of 6400
1520/6400*100 =23.75% on remaining
Hope that's the answer you were searching for !!

Answer 2

HOPE IT WILL HELP U....!