Question

if apples are bought at 11 for rs 10 and sold at 10for 11,how much will be the gain?

Answer 1

Given:
11apple's are Bought for 10Rs
→11apple's=10Rs
→1apple=10/11Rs. →[1]

and 10Apple's are sold for 11Rs
→10apple's=11Rs
→1apple=11/10Rs. →[2]

equating one and two...

the Profit would be...

[2] - [1]
→11/10 -10/11
=(121-100)/110
=21/110
=0.191(approx.)

So,The profit is Rs0.191 per apple(approx)