SSC MTS 2022 PYQ — Question 60

SSC MTS - 21 July 2022 - Shift 3 • Quantitative Aptitude • Q60

A, B, and C together can complete a work in 10 days. A and B together can do the same work in 12 days. If A, B, and C received ₹9,000 for doing the work together, then what was the share of C from the above amount?

Show answer & explanation

Correct answer: C

Explanation

The correct answer is option 3 i.e. ₹1,500

Given:

A, B and C can do the work in 10 days

Time taken by A and B to complete the work = 12 days

Wages of A, B and C = ₹9,000

Concept Used:

Total work done = Efficiency × Time

The wages are distributed in the ratio of the respective efficiencies.

Explanation:

Let's assume the total work is 60 units.

A, B, and C can complete a work in 10 days.

The efficiency of A, B and C together = 60/10 = 6 units/day     Eq.(i)

A and B together can do the same work in 12 days.

The efficiency of A and B together =60/12= 5 units/day          Eq.(ii)

The efficiency of C = Eq. (i) - Eq.(ii)

⇒ 6 - 5

⇒ 1 unit/day

If A, B, and C received ₹9,000 for doing the work together.

Share of C from the above amount = 9000 × 1/6 

⇒ 1500

Hence the share of C is ₹1500.