There are three brothers The sums of ages of two of them at a time are 4 yr 6 yr and 8 yr The age di...........

Quantitative Aptitude (CDS) Problems based on Ages

There are three brothers. The sums of ages of two of them at a time are 4 yr, 6 yr and 8 yr. The age difference between the eldest and the youngest is

3 yr

4 yr

5 yr

6 yr

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Explanation:

Let the ages of three brothers be a, b and c.
Then, a + b = 4
b + c = 6
and c + a = 8
On solving these three equations, we get a = 3, b = 1 and c = 5
Age difference between eldest and youngest = 5 − 1 = 4 yr