Question

Cp of 100 bananas is equivalent to SP of 20 bananas . find gain percent

Answer 1

Suppose the Cp of 100 bananas is Rs.100
& then the cost each banana = Rs 1
Now it's given that the sp of 20bananas is equal to the Cp of 100banana = 100
Thus selling cost of each banana= 100/20 = Rs. 5
Thus, gain per cent = 100/20* 100 = 500%.
Hope this helps