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RRB Junior Engineer / DMS / CMA 2019 · Question 25 of 3719

Difference of ages of father and son is 24 years. Two years back age of father was twice the son's present age. What is father's age now?

Mathematics - Ages

  1. Aa. 44
  2. Bb. 46Correct
  3. Cc. 38
  4. Dd. 42

Answer: B. b. 46

Explanation

Let F = father's age, S = son's age. ATQF-S= 24 F-2=2S Substitute F = S + 24 into F-2=2S, (S+24)-2 =2S S+22=2S S = 22 F=22+24 = 46 father's age now is 46 years.

Source: RRB JE 2019 CBT-1 (24-May-2019 Shift-2) — ixambee compilation with answer key and solutions · reliable-secondary

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