Question

Three persons undertake to complete a piece of work for 1200. The first person can complete the work in 8 days, second person in 12 days and third person in 16 days, They complete the work with the help of a fourth person in 3 days, What does the fourth person get? 

(a) Rs. 180 

(b) Rs. 200 

(c) Rs. 225 

(d) Rs. 250

Answer 1

Correct option (c) Rs. 225

Explanation:

⇒ IV^th person efficiency

= 16 – 6 – 4 – 3 = 3 units

16 units→  1200

1 unit → 75

3 units → Rs. 225