Question

After 20 years, Sravan’s age will become five times that of his present age. Find his present age.

Answer 1

Hint: Start by considering Sravan’s age as x , and continue as per the statement i.e. after 20 years his age would be (x+20) and use the relation given that it is 5 times the present age and solve for x.

 Complete step by step answer:
Let Sravan’s age be x
Sravan’s age after 20 years = x + 20
Now, According to the condition given in question
After 20 years Sravan is 5 times current age
$
  {\text{i}}{\text{.e}}{\text{. }}x + 20 = 5x \\
  {\text{shifting }}x{\text{ to the other side, we get}} \\
   \Rightarrow 20 = 5x - x \\
   \Rightarrow 20 = 4x \\
   \Rightarrow x = \dfrac{{20}}{4} \\
   \Rightarrow x = 5 \\
$
Therefore, Sravan’s present age is 5 years.

Note:
The trick involved in solving similar problems is that one must go step by step as per the instruction given in the question. Also cross verify your answer relating to real life situations . Let’s say there is a question involving the age relation of Father and Son , Now we all know that Father’s age must be greater than that of Son. Using such ideas might help one in identifying the mistakes made.