a room is 8m long, 6m wide and 4.5m high. It is to be painted at the rate of Rs. 550 per m2. Find the total cost incurred
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here is your answer
hope it helps you
hope it helps you
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bittudiya146:
it's answer is Rs. 1,18,800
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Hi there !!
Dimensions of the room:
Length = 8m
Breadth = 6m
Height = 4.5m
It is to be painted. This means that the area has to be covered,
Also, room is always in a shape of cuboid,
so,
Total Surface area = 2(lb + bh + lh)
= 2( 8 × 6 + 6 × 4.5 + 8 × 4.5) m
= 2( 48 + 27 + 36) m
= 222m²
Cost per m² = Rs 550
Cost for 222m² = 222 × 550 = Rs 122100
Thus ,
The cost will be Rs 122100.
Dimensions of the room:
Length = 8m
Breadth = 6m
Height = 4.5m
It is to be painted. This means that the area has to be covered,
Also, room is always in a shape of cuboid,
so,
Total Surface area = 2(lb + bh + lh)
= 2( 8 × 6 + 6 × 4.5 + 8 × 4.5) m
= 2( 48 + 27 + 36) m
= 222m²
Cost per m² = Rs 550
Cost for 222m² = 222 × 550 = Rs 122100
Thus ,
The cost will be Rs 122100.
but in my book answer there is 1,18,800
i am sure about it.
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