if daily wages of a man is double to that of a woman , how many men should work for 20 days to earn rs . 14400 ? given that wages for 40 women for 30 days are rs . 21600 .
"explanation : wages of 1 woman for 1 day = 21600 / 40 ã — 30 wages of 1 man for 1 day = 21600 ã — 2 / 40 ã — 30 wages of 1 man for 20 days = 21600 ã — 2 ã — 20 / 40 ã — 30 number of men = 14400 / ( 21600 ã — 2 ã — 20 / 40 ã — 30 ) = 144 / ( 216 ã — 40 / 40 ã — 30 ) = 20 answer : option e"
divide(14400, multiply(20, multiply(const_2, divide(21600, multiply(40, 30)))))