Question

A verandah is 40m long and 15m broad. It is to be paved with stones, each measuring 6dm by 5dm. Find the number of stones required.​

Answer 1

Answer:

Hope it helps you.

Step-by-step explanation:

Area of Verandah=l×b

Area of Verandah=40×15=600m

2

Area of each stone=6dm×5dm=30dm

2

=30×10

−2

m

2

Number of stone =

Areaofeachstone

AreaofVerandah

Number of Stones=

30×10

−2

600

Number of stones=2000

Answer 2

Answer:-

From the question,

Verandah has length of = 40 m = (40 × 10) dm = 400 dm [Because 1m = 10dm]

Verandah has length of = 15 m = (15 × 10) dm = 150 dm

∴Area of the verandah = (l × b)

=> (400 × 150) dm²

=> 60000 dm²

Now,

Length of a stone = 6dm (given)

Breadth of a stone = 5dm

∴Area of a stone = (l × b)

=> (6 ×5)

=> 30 dm²

∴Total number of stones required to pave the verandah = (Area of verandah/ Area of each stone)

=> (60000/ 30)

=> 2000 stones

Therefore, 2000 stones required.