A lane , 150 m long and 9 m wide , is to be paved with bricks , each measuring 22.5 cm by 7.5 cm . Find the number of bricks required .
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Step-by-step explanation:
first find volume of both
VOLUME OF LANE=150×9=1350
VOLUME OF 1 BRICK=22.5×7.5168.75
SO NUMBER OF BRICKS USED=VOLUME OF LANE÷VOLUME OF ONE BRICK=1350÷168.75
135000÷16875=8
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