Question

Ten pencils cost Rs 15. How many pencils can be bought with Rs 72?

Answer 1

Cost of 10 pencils = Rs 15

Let us assume that the number of pencils bought with Rs 72 = x

10: x = 15: 72 (1 Mark)

x × 15 = 10 × 72 (bc = ad)

We get,

15x = 720

x = 720 / 15

x = 48

Therefore,

Number of pencils = 48 (1 Mark)