Quantitative Aptitude – Arithmetic – Ratio and progression


Slot – 2 – Quantitative Aptitude – Arithmetic – Ratio and progression – The salaries of Ramesh, Ganesh and Rajesh

Q. 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?
  1. 7
  2. 9
  3. 10
  4. 8
Answer: 7

Solution: Let Ram = 6k, G = 5k and Raj = 7k in 2010
In 2015, Ram = 3p, G = 4p and Raj = 3p
Since Ram’s salary increased by 25%, so
6k*5/4 = 3p
5k = 2p
% increase in Rajesh salary = 3p – 7k/7k = 3(p/k) – 1/7
On solving by putting value of p/k as 5/2, we get
% increase = 7. 07%

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