Question

orange are bought at 6 for 20 and sold at 4 for 18 find the gain or loss percent

Answer 1

cost price of 6 oranges= rs20
cost price of 1 orange= rs20/6
sold price or selling price of 4 oranges=rs18
sold price of one orange= rs18/4
you can see that there is a profit,
so profit=P=selling price-cost price
=18/4-20/6
= 7/6
profit% or u can say gain%=profit/cost price×100(it is a formula)
=7/6/20/6×100
=7/20×100
=7×5
=35%
so your answer is 35%

hope it may help u☺☺