IBPS PO Prelims Model Paper 11

Let A’s present age be x years.
∴ B’s present age = (x + 8) years
C’s present age = (x + 16) years
After 12 years,

A’s age

C's age

=

5

9

⇒

x+12

x+16+12

=

5

9

⇒9x+108=5x+140
⇒9x−5x=140−108
⇒4x=32
⇒x=

32

4

=8
∴ Sum of the present ages of A, B and C
= x + x + 8 + x + 16
= 3x + 24 = 3 × 8 + 24 = 48 years