SSC CHSL 2020 PYQ — Question 62

SSC CHSL - 19th October 2020 - Shift 2 • Quantitative Aptitude • Q62

Kamal and Anil can dig a pond in 8 days and 14 days, respectively. If the total expense of digging is Rs.4,400, then how much money will Anil earn?

Show answer & explanation

Correct answer: B

Explanation

The correct answer is option 2 i.e Rs.1600

Understanding Application
The efficiency of a worker is the inverse of the time taken by him.

The efficiency of Kamal = 1/8

The efficiency of Anil = 1/14

The total efficiency when both worked together = 1/8 + 1/14

⇒ (7 + 4)/56

⇒ 11/56

Anil's share of money

⇒ ((1/14)/(11/56)) × 4400

⇒ Rs. 1600