if 2 men or 3 women can reap a field in 10 days how long will 4 men and 5 women take to reap it ?
"explanation : 2 men reap 1 / 10 field in 1 day 1 man reap 1 / ( 2 x 10 ) 3 women reap 1 / 10 field in 1 day 1 woman reap 1 / ( 10 x 3 ) 4 men and 5 women reap 4 / ( 2 x 10 ) + 5 / ( 3 x 10 ) ) = 11 / 30 in 1 day 4 men and 5 women will reap the field in 11 / 30 days answer : option b"
divide(10, add(multiply(4, divide(10, 2)), multiply(5, divide(10, 3))))