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?	Choose the correct option:
A) 814
B) 820
C) 842
D) 844
E) 848
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 = (1517×902)/ (41×41) = 814   answer :814
<result>A</result>
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?