a rectangular courtyard 3.78 meters long 5.25 meters wide is to be paved exactly with square tiles , all of the same size . what is the largest size of the tile which could be used for the purpose ?
explanation : 3.78 meters = 378 cm = 2 × 3 × 3 × 3 × 7 5.25 meters = 525 cm = 5 × 5 × 3 × 7 hence common factors are 3 and 7 hence lcm = 3 × 7 = 21 hence largest size of square tiles that can be paved exactly with square tiles is 21 cm . answer : b
multiply(divide(divide(divide(divide(multiply(3.78, const_100), const_2), const_3), const_3), divide(divide(divide(divide(multiply(3.78, const_100), const_2), const_3), const_3), const_3)), divide(divide(divide(divide(multiply(3.78, const_100), const_2), const_3), const_3), const_3))