Question

The salaries of Ramesh, Ganesh and Rajesh were in the ratio 6:5:7 in 2010, and in the ratio 3:4:3 in 2015. If Ramesh’s salary increased by 25% during 2010-2015, then the percentage increase in Rajesh’s salary during this period is closest to

• A. 8
• B. 7
• C. 9
• D. 10

Answer 1

Answer: (B)

7

Answer 2

Their salaries in 2010 were 6x, 5x, and 7x, respectively.
Subsequently, in 2015, their salaries became 3y, 4y, and 3y.
The relationship $3y = 1.25\times6x$ is established, leading to the conclusion that y is equivalent to 2.5x.
Consequently, Rajesh's salary in 2015 is determined to be 7.5x.
The calculated percentage increase in Rajesh's salary from 2010 to 2015 is approximately 7%.