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Prateek Asked :

13-01-2022 Area

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

Commented on 2022-01-15
Answer: Option A



Length of largest tile = H.C.F. of 1517 cm and 902 cm = 41 cm.

Area of each tile = (41 x 41) cm2.

Required number of tiles = (1517 x 902)/(41 x 41)  = 814.

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