Aptitude - Problems on Ages - Discussion

Discussion Forum : Problems on Ages - General Questions (Q.No. 2)
2.
The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?
4 years
8 years
10 years
None of these
Answer: Option
Explanation:

Let the ages of children be x, (x + 3), (x + 6), (x + 9) and (x + 12) years.

Then, x + (x + 3) + (x + 6) + (x + 9) + (x + 12) = 50

5x = 20

x = 4.

Age of the youngest child = x = 4 years.

Discussion:
102 comments Page 11 of 11.

Martin said:   2 decades ago
x+3+x+6+x+9+x+12=30

5x+30=50

5x=50-30

5x=20

x=4.
(1)

Vincent said:   2 decades ago
How did we get 5x = 20 ?


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