What is the least number of squares tiles required to pave the floor of a room 2 m 25 cm long and 1 m 35 cm broad?	Choose the correct choice from the following choices:
A) 15 B) 20 C) 40 D) 44 E) 48
Length of largest tile = H.C.F. of 225 cm and 135 cm = 45 cm.   Area of each tile = (45 x 45) cm2.   Required number of tiles =225 x 135/(45^2)= 15.   15NSWER:15
<result>A</result>
What is the least number of squares tiles required to pave the floor of a room 2 m 25 cm long and 1 m 35 cm broad?