CSC Company Numerical Ability Area and Volume

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

Read Solution (Total 1)

Answer: Option A
Explanation:
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/(41^2)= 814.
10 years agoHelpfull: Yes(3) No(2)

CSC Other Question

The diagonal of a rectangle is 41 cm and its area is 20 sq. cm. The perimeter of the rectangle must be:

A. 9 cm B. 18 cm
C. 20 cm D. 41 cm The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?

A. 25% increase B. 50% increase
C. 50% decrease D. 75% decrease