Aptitude - Problems on Ages - Discussion

Discussion Forum : Problems on Ages - General Questions (Q.No. 13)
13.
A person's present age is two-fifth of the age of his mother. After 8 years, he will be one-half of the age of his mother. How old is the mother at present?
32 years
36 years
40 years
48 years
Answer: Option
Explanation:

Let the mother's present age be x years.

Then, the person's present age = 2 x years.
5

2 x + 8 = 1 (x + 8)
5 2

2(2x + 40) = 5(x + 8)

x = 40.

Discussion:
59 comments Page 5 of 6.

Leena said:   1 decade ago
Can anybody explain me?

(2x+40)/5 = (x+8)/2.

4x + 80 = 5x + 40.

Nithi said:   1 decade ago
Hai friends! please give one clear solution for that question.

Mithu Sen said:   1 decade ago
Hey Yuga.

Thanks your way of explaination was very simple.

Manoj said:   8 years ago
What is the age difference between mother and person?

Ali arif said:   9 years ago
After 8 years, the age of the mother is 40 years.

Pabitra gogoi said:   9 years ago
Your solution is the best, Thanks @Yuga.

Swappi said:   1 decade ago
Please give simple solution and tricks.

Kiran said:   1 decade ago
Second step how wrote by first line?

Aditya said:   1 decade ago
Hey can any one explain properly?

B Krishna Murthy said:   3 years ago
Thank You for explaining @Yuga.
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