SSC CGL 12 Aug 2017 Shift 1 Paper

Question : 11 of 100

Marks: +1, -0

Ratio of present ages of P and

Q

9: 4 .

The difference between their ages is 20 years. What will be the sum (in years) of their ages after 10 years?

Solution:

Let P's present age

=9 x

years
Q's present age

=4 x

years
According to the question,

9 x-4 x=20

⇒

5 x=20

x=4

The sum of their ages after 10 years

=9 x+10+4 x+10

=13 x+20=13 × 4+20

=52+20=72

years

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