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

M4maths Previous Puzzles

20 Oct 2017 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
64 years now, what was the son's age fifteen years back?"

OPtion

1) 21
2) 20
3) 19
4) 18
5) 22
6) 16
7) 17
8) 23
9) 24
10) None of these

Solution

Let the sons current age be x
So fathers age x years back when son was born => 54-x = x
Solving we get x = 32
15 Years back son's age = 32-15 = 17 years

Correct Option: 7 Best Solution (9)

KICK   7 years AGO

let sons age =x
fathers age is x years at the birth of son
so fathers age=x+x=2x
2x= 64
=)) x =32
sons age 15 years back =32-15=17
so option 7

Like? Yes (4) | No   

Siva   7 years AGO

Now father's age is 64, son's age is 32. 15yrs back son's age is 17.

Like? Yes (1) | No   

G.S.Kantharao   7 years AGO

Present Father's age= Twice of present son's age=64years
Present son's age =32years
15years back his age =32-15=17years
Hence the right option is 7👈

Like? Yes (1) | No   

Anupam Tripathi   7 years AGO

2x=64
X=32
32-15=17years

Like? Yes (1) | No   

Divya Batra   7 years AGO

64-x=x
x=32
so, 15 years back, son's age was 17 years.

Like? Yes (1) | No   

AYAN PAUL   7 years AGO

Let Son's age is X year
So according to the question
64- X = X
So , X = 32
So son's age 15 years ago will be = 32-15 = 17 year

Like? Yes (1) | No (1)  

SAYAN CHATTERJEE   7 years AGO

F=2*S
F=64, So, S= 32
So, son's age 15 yrs back= (32-15) = 17.
Option 7.

Like? Yes | No   

Boinibal Sreelatha   7 years AGO

let's the son's present age is x. then (64-x)=x
2x=64
x=32
son's age 15 years back is=(32-15)years=17years

Like? Yes | No   

Mantu kumar   7 years AGO

Suppose father age at a time of birth of son is x
And now son age is x .
It means father age is double now(x+x).
Then x is 32
Son age 15 years back is 32-15=17

Like? Yes | No