Six years ago the ratio of the ages of the two persons P and Q was 3 2 Four years hence the ratio of...........

Quantitative Aptitude (RRB NTPC) Problems based on Ages

Six years ago, the ratio of the ages of the two persons P and Q was 3:2. Four years hence the ratio of their ages will be 8:7. What is P’s age?

10 years

12 years

14 years

8 years

Let present age of P = P

Present age of Q = Q

Atq,

(P-6)/(Q-6)=3/2

=>2P-3Q=6

&(P+4)/(Q+4)=8/7 ⇒ 7P – 8Q = 4

By solving both equations

P = 12 yrs

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