a river 3 m deep and 36 m wide is flowing at the rate of 2 kmph the amount of water that runs into the sea per minute is ?
"( 2000 * 3 * 36 ) / 60 = 3600 m 3 answer : c"
divide(multiply(multiply(3, 36), multiply(2, const_1000)), multiply(const_1, const_60))