What is the least number of square tiles required to pave the floor of a room 10 m 17 cm long and 9m 9 cm broad?	Choose the correct answer
A) 724 B) 804 C) 11413 D) 844 E) None
Solution   Length of largest tile = H.C.F. of 1017cm &amp; 909cm = 9cm.   Area of each tile = (9 x 9)cm2   ∴ Required number of tiles	= [1017x909/9x9]   = 11413.   Answer 11413
<result>C</result>
What is the least number of square tiles required to pave the floor of a room 10 m 17 cm long and 9m 9 cm broad?