Question

the cost of flooring a room at $7.50 per square matreis $660 if the breadth of the room is 8 m, find its length​

Answer 1

COST OF FLOORING PER SQ. METRE = RS 7.50

TOTAL EXPENDITURE = RS 660

THUS,

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

= 660/7.50 m²

= 88m²

NOW,

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BREADTH OF THE ROOM = 8 m

SO,

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LENGTH × BREADTH = 88

8×LENGTH = 88

LENGTH = 88/8m

LENGTH= 11m

HOPE IT HELPS