What is the least number of square tiles required to pave the floor of a room 11 m 50cm long and 1m 50 cm broad?
Choose the correct choice.
A) 724
B) 804
C) 69
D) 844
E) None
Solution   Length of largest tile = H.C.F. of 1150cm &amp; 150cm = 50cm.   Area of each tile = (50 x 50)cm2   ∴ Required number of tiles	= [1150x150/50x50]   = 69.   Answer 69
<result>C</result>
What is the least number of square tiles required to pave the floor of a room 11 m 50cm long and 1m 50 cm broad?