a contractor undertook to do a piece of work in 9 days . he employed certain number of laboures but 6 of them were absent from the very first day and the rest could finish the work in only 15 days . find the number of men originally employed .
let the number of men originally employed be x . 9 x = 15 ( x – 6 ) or x = 15 answer a
divide(multiply(15, 6), subtract(15, 9))