Question

The weight of 12 sheets of a thich paper is 40 grams. How many sheets would weight 1 kg ?

(a) 480 (b) 360 (c) 300 (d) none of these

Answer 1

Answer : (c)

No. of sheets 12 : x

Weight 40 g : 1000 g

More weight, more sheets

$\therefore$ By direct proportion

12 : x : : 40 : 1000

$x=\frac{12\times 1000}{40}=300$

$\therefore$ No. of sheets = 300