Question

A shopkeeper earns a profit of ` 1 by selling one pen and incurs a loss of 40 paise per pencil while selling pencils of her old stock.
In a particular month she incurs a loss of ` 5. In this period, she sold 45 pens. How many pencils did she sell in this period?

Answer 1

Profit from 1 pen = Rs 1

Loss from 1 pencil = Rs 0.40

Find the profit from the 45 pens sold:

1 pen = Rs 1

45 pens = 1 x 45 = Rs 45

Find the loss from selling the pencils:

Net Loss = Rs 5

Profit from pen = Rs 45

Loss made from selling the pencils = 5 + 45 = Rs 50

Find the number of pencils sold:

Loss from 1 pencil = Rs 0.40

Number of pencils sold = 50 ÷ 0.40 = 125

Answer: He sold 125 pencils