How many bricks of area 1 sq m will be needed to cover the floor of room 30 m long and 25 m wide ?
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10
area of one brick multiplied by the no. of bricks will be equal to the area of the floor. Hence the answer.
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saransh8738:
thank you
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3
area of room=l×b
30×25
750msquare
needed brick =750
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