Question

A shopkeeper earns a profit of rs.5 by selling one pen and inncurs a loss of 2 rupees per pencil while selling pencils of her old stock. In a month she earns neither profit nor loss. If she sold 70 pens, how many pencils did she sell?

Answer 1

Dear friend,

The answer for this question is here:

Cost of pen: rupees 5

Cost of pencil: Rupees 2

Pens she sold: 70

Therefore, pencils she sold: (70 divided 2 )

= 35

Answer: She sold 35 pencils...

Answer 2

Shopkeeper earns profit of rs5 per pen

So by selling 70 pens shopkeeper earns = 70×5 = 350 rs

Shopkeeper earns neither profit nor loss

So shopkeeper loss 350 by selling pencils

So shopkeeper sold 350/2 = 175

Hence shopkeeper sold 175 pencils