Let’s get into the basic concepts of this type of problems

• Try to find correct relation in order to create the right equation for finding the answer
• An equation must be one variable equation i.e 2x=23, 23y+34=y

Age Problems Tips:

• If A is 6 years older than B or A is 6 years younger than B, in such situations, we have to add or subtract in the x variable
• If A’s age twice of B’s age or A’s age is half of B’s Age. In such situations, we have to multiply or divide in x variable
• If two ages are given in ratio, 2:1 we assume it as 2x or 1x
• When A’s age is twice more than B. In such case, A= B + 2B

Types of Questions With Age Problem Tricks 

• When you need  to identify the relation between ages  

  • Always try to equal the present age and future age by adding or subtracting years given in the question

Q. A man is 24 years older than his son. In two years, his age will be twice the age of his son. The present age of his son is:

Present:

Suppose Son’s Age be = x

His Father Age = x + 24

Future:

After 2 years his age becomes two times his son’s age

Son’s Age = x + 2

Father’s Age = 2* Son’s Age After two years = 2(x+2)

We can balance his father’s present age with the future by simply adding 2 years in it

Present Age + 2 = Future Age

x+24+2 = 2(x+2)

x+26 = 2x +4

26-4 = 2x – x

22 = x

So, his son’s present age is 22.

• When Age in ratio

  • In this most of time numerator and denominator types of things come into play

Q. Present ages of Sameer and Anand are in the ratio of 5 : 4 respectively. Three years hence, the ratio of their ages will become 11 : 9 respectively. What is Anand’s present age in years?

Present Ages:

Sameer’s Age = 5x

Anand’s Age = 4x

which gives 5x/4x

Future Age:

Sameer’s Age = 11x

Anand’s Age = 9x

which gives 11x/9x

To Balance these, we have to add 3 years in the present age

Present Age + 3 = Future Age

(5x +3)/(4x + 3) =11x/9x

(5x +3)/(4x + 3) =11/9

9(5x +3)= 11(4x + 3)

45x+27 = 44x +33

45x -44x = 33- 27

x =6

Present Age of Anand = 4*6 = 24