What is the minimum number of square marbles required to tile a floor of length 3 metres 39 cm and width 1 metres 13 cm?  Select the correct option:
A) 176  B) 187  C) 540  D) 748  E) 3
The marbles used to tile the floor are square marbles.   Therefore, the length of the marble=width of the marble.the length of the marble=width of the marble.   As we have to use whole number of marbles, the side of the square should a factor of both 3 m 39 cm and 1m 13. And it should be the highest factor of 3 m 39 cm and 1m 13.   3 m 39 cm = 339 cm and 1 m 13 cm = 113 cm.   The HCF of 339 and 113 = 113.   Hence, the side of the square is 113.   The number of such square marbles required,   =339×113/113×113   =3 marbles   Option(3)
<result>E</result>
What is the minimum number of square marbles required to tile a floor of length 3 metres 39 cm and width 1 metres 13 cm?