1. The problem statement, all variables and given/known data A contractor employed a certain number of men to complete a work in a certain number of days. If 3 more men were deployed the work would be ﬁnished 2 days earlier while if 12 more men were deployed it would be ﬁnished 5 days earlier. Find number of men deployed by the contractor. 2. Relevant equations 3. The attempt at a solution Let the number of men be n. Let the number of days be t. Now how should I translate this problem into equation ? Please help!