Question

by selling a stool for ₹ 7.50 a carpenter losses 10% how much percent would he gain or loss by selling it for rupees ₹82.50.

Answer 1

selling price = 7.5

loss Percentage= 10%

Let Cost Price be 'x'

cost Price - cost price ×loss Percentage = selling price

x - x×10% = 7.5

x -10x/100 = 7.5

x -0.1x = 7.5

0.9x = 7.5

x = 7.5/0.9

x = 8.33 = cost price

Required Selling price = 82.50

cost Price + cost price ×gain percentage = selling price

8.33 + 8.33×gain percentage= 82.50

8.33×gain Percentage = 82.50 - 8.33

8.33 × Gain Percentage = 74.17

Gain Percentage = 74.17/8.33 =8.9 =8.9×100 = 890%