Seema bought more mangoes than guavas. She sells mangoes at Rs.23 apiece and makes 15% profit. She sells guavas at Rs.10 apiece and makes 25% profit. If she gets Rs.653 after selling all the mangoes and guavas, find her profit percentage.
Assume Seema Sells X mangoes and Y guavas, where X > Y
Then, 23X + 10Y = 653 ---(i)
Try putting X = 1, 11, 21, 31…
(Why are we trying X =1,11,21? because as per equation (i) last digit of 23*X needs to be3 )
X=1 cannot be true as X>Y
When X=11, Y = 40 so this also cannot be true as X >Y
Next we find X = 21 and Y = 17 is the only solution where X > Y
Cost of aMango = 23/1.15 and cost of aGuava = 10/1.25
Overall cost = 483/1.15 + 170/1.25 = 556
Then profit = 653 – 556=97
Profit percentage = (97/556)×100=17.4%
Option 5)