an aeroplane covers a certain distance at a speed of 150 kmph in 2 hours . to cover the same distance in 1 2 / 3 hours , it must travel at a speed of :
"explanation : distance = ( 150 x 2 ) = 300 km . speed = distance / time speed = 300 / ( 5 / 3 ) km / hr . [ we can write 1 2 / 3 hours as 5 / 3 hours ] required speed = 300 x 3 / 5 km / hr = 180 km / hr . answer : option c"
divide(divide(multiply(150, 2), add(const_1, divide(const_2, const_3))), const_2)