SSC GD 2021 PYQ — Question 57

SSC GD Constable (English) - 16th November 2021 Shift 1 • Quantitative Aptitude • Q57

The ratio of A's and B's salary is 6 : 7. If B's salary is increased by 512\frac 1 2%, then his total salary becomes Rs. 1,47,700. The salary (in Rs.) of A is:

Show answer & explanation

Correct answer: B

Explanation

The correct answer is option 2 i.e. 1,20,000.

Let the initial salary of B be 100x 

then when increased by 5.5%, salary becomes 105.5x

105.5x = Rs.147700

⇒ 100x = 147700/105.5 × 100 = Rs. 140000

Now as the salaries of A and B are in ratio 6 : 7

Salary of B = 7 units = Rs. 140000

Salary of A = 6 units = 140000/7 × 6 = Rs. 120000