RBI Grade B Officers 22 Nov 2015 Paper

(1) After 5 years from today,Daughter’s age = 7x years
Son’s age = 6x years
∴Daughter’s present age
= (7x – 5) years
Son’s present age
= (6x – 5) years
∴ Poorvi’s present age
= (7x – 5 + 6x – 5 + 8) years
= (13x – 2) years
∴ Poorvi’s husband’s present
age = (13x + 5) years
According to the question,
⇒13x+5=3(6x–5)
⇒ 13x+5=18x–15
⇒18x–13x=20⇒5x=20
⇒x = 4
∴ Daughter’s present age= 7x – 5=7×4–5=23years