Latest Sasken Aptitude Question SOLUTION: Q. When I become as old as my father is now, I will be 5 times the age of my son and my son will be 8 yrs older than what I am now. father+my age=100. How old is my son now?

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Q. When I become as old as my father is now, I will be 5 times the age of my son and my son will be 8 yrs older than what I am now. father+my age=100. How old is my son now?

Asked In Sasken (12 years ago)

Unsolved Read Solution (5)

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kalyan kumar  (11 years ago)

Let X be the my father's age, Y be the my age.
1)Given X+Y=100-----(1)
2)if I becomes as old as my father is now----> if Y becomes X
3)then my son's age is X/5;
also given X/5=Y+8;----------(2)
By solving (1)&(2) X=90,Y=10 then
My son age =X/5 =18;

Is this solution Helpfull? Yes (10) | No (2)  

Pargat Pal Singh  (12 years ago)

father's age .. 65,
my age .. 35

son's age = 13 yrs

Is this solution Helpfull? Yes (7) | No (12)  

chandan singh  (7 years ago)

For problems such as these always start by making a table. This will help in setting up equations faster.

Now Future
Father x
Me 100-x x
Son y 100-x+8

From statement 1
x = 5y ----------------------- Eq1

From my age
Time taken to future = x - (100-x) = 2x-100

From my sons age
Time taken to future = (108-x) - y

Equating
2x-100 = 108-x-y
or
3x+y = 208 ------------- Eq2

Substitute x from Eq1 in Eq2
15y +y = 208
16y = 208
y = 13

My Sons age in 13, My father is 65 & I am 35

Is this solution Helpfull? Yes (4) | No (1)  

PRIYA  (9 years ago)

can anyone explain this.

Is this solution Helpfull? Yes | No   

Varun  (6 years ago)

My age = 10
Father age = 90

After 80 years,
My age = 90
My son's age = 18

So my son is 18 years old now.

Is this solution Helpfull? Yes | No (1)  

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