a began business with rs . 27000 and was joined afterwards by b with rs . 36000 . when did b join if the profits at the end of the year were divided in the ratio of 2 : 1 ?
"27 * 12 : 36 * x = 2 : 1 x = 4.5 12 - 4.5 = 7.5 answer : c"
subtract(multiply(const_4, const_3), divide(divide(multiply(27000, multiply(const_4, const_3)), 36000), 2))