Question

Find the cost of 3 ½ m cloth, if one metre cloth costs ₹ 325 ½.

Answer 1

It is given that cost of one metre cloth = ₹ 325 ½

We can write it as

= (2 × 325 + 1)/ 2

By further calculation

= (650 + 1)/ 2

= ₹ 651/2

Cost of 3 ½ m cloth

(2 × 3 + 1)/ 2 = 7/2 m

We get

= 651/2 × 7/2

It can be written as

= (651 × 7)/ (2 × 2)

= 4557/4

= ₹ 1139 ¼