Question

A varandah which is 40 m long and 15 m broad is to be paved with stones, each measuring 6 dm by 5 dm. find the number of stones required.

Answer 1

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Here is your answer.

Area of Veranda = 40 × 15
= $600 {m}^{2}$

Now
1 dm = 1/10 m = 0.1 m
6 dm = 6 × 0.1 = 0.6 m
5 dm = 5 × 0.1 = 0.5 m

Area of stone = 0.6 × 0.5
= 0.3 sq m

Therefore Number of stone required is
$= \frac{600}{0.3} \\ \\ = 2000$

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Answer 2

Hi friends

Here is your answer

Area of Veranda = 40 × 15 = 600 sq.m

Area of Stone = 0.6 × 0.5 = 0.30 sq.m

Number of Stone = 600/0.3
$= \frac{6000}{3} \\ \\ = 2000$

so The number of stone is 2000

Hope it helps

@ MSD