A room 9.5 m long and 6 n wide is surrounded by a 1.25 m wide verandah . Calculate the cost of cementing the floor of this varendah at Rs 80 per metre square
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area of room = length * breadth
= 9.5 m * 6 m
= 57 metre square
Then we will find length and breadth of veranda
length = 9.5 + 1.25 * 2
= 12 m
breadth = 6 + 1.25 * 2
= 8.5 m
Area of veranda = length * breadth
= 12 m * 8.5 m
= 102 metre square
Cost of cementing 1 metre square = Rs 80
Cost of cementing 102 metre square = Rs 80 * 120
Cost of cementing = Rs 9600
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= 9.5 m * 6 m
= 57 metre square
Then we will find length and breadth of veranda
length = 9.5 + 1.25 * 2
= 12 m
breadth = 6 + 1.25 * 2
= 8.5 m
Area of veranda = length * breadth
= 12 m * 8.5 m
= 102 metre square
Cost of cementing 1 metre square = Rs 80
Cost of cementing 102 metre square = Rs 80 * 120
Cost of cementing = Rs 9600
If you like the answer mark me as brainliest
tpking:
wrong answer
boo
in my maths this is the formula
formula is right but your method is wrong
how
we have to find the area of verandah excluding the area of the room
you are telling the answer including the area of room
Answered by
4
area of room=9.5m × 6m=57.0m square
area of whole=(9.5m+1.25m)×(6m+1.25)=10.75m×7.25m=77.9375m square
area of verandah=20.9375m square
cost of cementing=20.9375×80=₹1675
area of whole=(9.5m+1.25m)×(6m+1.25)=10.75m×7.25m=77.9375m square
area of verandah=20.9375m square
cost of cementing=20.9375×80=₹1675
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