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

• ans is 0.5 %
• 11 years agoHelpfull: Yes(4) No(2)
• 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*41 = 814.
  
  
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