Question

the coast of 10 oranges is equal to the selling price of 9 oranges find the profit per cent with steps

Answer 1

Let CP of 10 oranges be RS.1
CP of 1 orange = RS.1/10
SP Of 1 orange = RS.1/9

Gain= 1/9 - 1/10 = 1/90
Gain %= 1/90×100=10/9
then, 10/9 ÷ 1/10
10/9×10 = 100/9% Ans.