Discussion of Question with ID = 017 under Areas

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Question

What is the smallest number of square tiles that can be laid fully, without cutting, on a floor 10 m by 64 m?

A

160 .

B

161 .

C

159 .

D

162 .

Soln.
Ans: a

The side of the square tile has to be HCF(10, 64) = 2. Hence, the required number is ${10 × 64}/{2 × 2}$ = 160.


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