Three years ago the father was 7times as old as his son Three year hence the father rsquo s age woul...........

Mental Ability (N tehsildar) Problems based on Ages

Three years ago the father was 7times as old as his son. Three year hence the father’s age would be 4times that of his son. Find present ages of father and son?

25yr

35yr

45yr

55yr

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Explanation:

Solution:
. F : S
3yr ago 7 : 1.. …………..(1)
Present -3 +0
3yrs after 4 : 1 …….……..(2)
We have to Make difference same.
Equation (1) * 3 equation (2) * 6
. F………..S
. 21…….. 3
. 24……..6
Now difference 24-21 =3, 6-3 = 3 is same.
3 = 6
1 = 2
21 = 42
Present age =42+3 = 45 yr