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Q.
What is the least number of squares tiles required to pave the floor of a room 15 m 17 cm long and 9 m 2 cm broad?
A.
814
B.
820
C.
840
D.
844
View Answer
Correct choice: A
Explanation:
Length of largest tile = H.C.F. of 1517 cm and 902 cm = 41 cm. Area of each tile = (41 x 41) sq.cm Required number of tiles = 1517 x (902/41) x 41 = 814
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