If 15 people take 5 days to complete a job, in how many days can 25 people finish that work?

2 4 3 1

3

Formula to be used here, \( { M}_{1 } \) x \( { D}_{1 } \)  = \( { M}_{2 } \) x \( { D}_{2 } \) where, M = No. of men, D = No. of Days, ⇒ Putting the value in the formula, ⇒ 15 x 5 = 25 x \( { D}_{2 } \) ⇒ \( { D}_{2 } \) = 3 days,