Question

a pen is sold at rs90 with a loss of 10% .at which it should be sold to make a profit of 10%​

Answer 1

We know that the cost price of pen = Rs 90

Selling price of pen = Rs 100

By using the formula,

Gain = selling price – cost price

= 100 – 90

= Rs 10

By using the formula,

Gain % = (gain/cost price) × 100

= (10/90) × 100

= 100/9

= 1119 %