IBPS SO Prelims Exam Model Paper 7

Given:
Present age ratio of Soni and Moni = 3 : 4
5 years back, age ratio of Soni and Moni = 2 : 3
calculation:
Let the present age of Soni be 3x and Moni be 4x
So, 5 years back, Soni's age = (3× - 5)
And 5 years back, Moni's age = (4× -5)
According to the question,
⇒

(3x−5)

(4x−5)

=

2

3

⇒ 3(3x - 5) = 2(4x - 5)
⇒ 9x - 15 = 8x - 10
⇒ x = 5
So, Soni;s current age = 3x5 = 15
∴ Present age of Soni is 15 years