room is 10 m 50 cm long and 9 m 60
cm wide. How many square tiles of 15 cm
side will be required to pave it? Also, find
the cost of tiles at the rate of 75 p per tile.
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length of room=10m50cm= 1050cm
breadth of room = 9m60cm=960cm
area of floor of room = 1050X960=1008000cm^2
side of tile = 15cm
area of tile=15X15=225cm^2
number of tiles = 1008000÷225=4480
cost of 1 tile =75p
cost of 4480 tiles=336000p=336000÷100= 3360Rs.
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