car a runs at the speed of 65 km / hr & reaches its destination in 8 hr . car b runs at the speed of 72 km / h & reaches its destination in 4 h . what is the respective ratio of distances covered by car a & car b ?
"sol . distance travelled by car a = 65 ã — 8 = 520 km distance travelled by car b = 72 ã — 4 = 288 km ratio = 520 / 288 = 65 : 36 d"
divide(multiply(65, 8), multiply(72, 4))