if rs . 480 amount to rs . 540 in 4 years , what will it amount to in 6 years at the same rate % per annum ?
"80 = ( 480 * 4 * r ) / 100 r = 3.125 % i = ( 480 * 6 * 3.125 ) / 100 = 90 480 + 90 = 570 answer : d"
subtract(multiply(subtract(540, 480), 6), subtract(540, 480))