Question

The total cost of flooring a room at the rate of Rs. 85 per sq.m.is Rs. 5100. If the length of the room is 10m, find its perimeter.

Answer 1

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Answer 2

Answer:

COST OF FLOORING PER SQ. METRE = RS 85

TOTAL EXPENDITURE = RS 5100

THUS,

AREA OF THE ROOM = TOTAL EXPENDITURE / RATE PER SQUARE METRE

= 5100/85 m²

= 60m²

NOW,

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LENGTH OF THE ROOM = 10m

SO,

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LENGTH × BREADTH = 60

=8× BREADTH = 60

=BREADTH = 60/10m

=BREADTH = 6m

perimeter = 2(L+B)

= 2(10 + 6 )

= 2×16

=32m

Step-by-step explanation:

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