a rectangular courtyard 3.78 m lang and 5.25 m broad is to be paved exactly with square tiles , all of the same size . the minimum number of such tiles is :
l = 378 cm and b = 525 cm maximum length of a square tile = hcf of ( 378,525 ) = 21 cm number of tiles = ( 378 × 525 ) / ( 21 × 21 ) = ( 18 × 25 ) = 450 answer is d .
divide(multiply(multiply(3.78, const_100), multiply(5.25, const_100)), power(multiply(add(const_3, const_4), const_3), const_2))