how many bricks each measuring 30 cm x 12 cm x 10 cm , will be needed to build a wall 6 m x 4 m x 20.5 m
explanation : no . of bricks = volume of the wall / volume of 1 brick = ( 600 x 400 x 20.5 ) / ( 30 x 12 x 10 ) = 1366 answer : b
divide(multiply(multiply(6, 4), 20.5), divide(divide(multiply(multiply(30, 12), 10), const_100), const_100))