A father said to his son, "I was as old as you are at the present at the time of your birth". If the

M4maths Previous Puzzles

05 Oct 2018 Age

A father said to his son, "I was as old as you are at the present at the time of your birth". If the father's age is 45 years now, what was the son's age three and half years years back?

OPtion

1) 19
2) 16
3) 18
4) 17
5) 15
6) 14
7) 13
8) 20
9) 21
10) None of these

Solution

Let the sons current age be x
So fathers age x years back when son was born => 45-x = x
Solving we get x = 22.5
3.5 Years back son's age = 22.5-3.5 = 19 years

Option 1)

Correct Option: 1 Best Solution (7)

G.S.Kantharao   6 years AGO

Father's age=2x=45
Son's age=x=22.5
3.5years back son's age=19y
Right option is 1👈

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SAYAN CHATTERJEE   6 years AGO

F= 2s= 45
S= 22.5
3.5 yes back son's age was (22.5-3.5)= 19.
Option 1.

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Shanjay Sundar . D   6 years AGO

let x be the sons age
45-x=x
x=22.5
now 22.5-3.5=19

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hemlata jethanandani   6 years AGO

Let son's present age is x years
so fathers present age x+x=45
2x=45
x=22.5 years
so sons age three and half years back 22.5-3.5=19years

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Kariamal   6 years AGO

son's age=x
Father's age=45-x
45-x=x
x=22.5
Three and half years back=19

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Uday kiran reddy yeruva   6 years AGO

45/2-3.5=19

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kowsalya   6 years AGO

According to the question, father is twice the son.
So, father=45 and son = 45/2

Before three and half years back son's age will be,

(45/2)-(7/2) = 19

(Here 7/2 represents three and half years)


Therefore son's age before three and half years is 19 years.

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