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Aptitude - Problems on Ages - Discussion

Discussion Forum : Problems on Ages - Data Sufficiency 2 (Q.No. 1)
Problems on Ages
Directions to Solve

Each of the questions given below consists of a question followed by three statements. You have to study the question and the statements and decide which of the statement(s) is/are necessary to answer the question.

1.

What is Arun's present age?

I. 

Five years ago, Arun's age was double that of his son's age at that time.

II. 

Present ages of Arun and his son are in the ratio of 11 : 6 respectively.

 III. 

Five years hence, the respective ratio of Arun's age and his son's age will become 12 : 7.

Only I and II
Only II and III
Only I and III
Any two of the three
None of these
Answer: Option
Explanation:

 II. Let the present ages of Arun and his son be 11x and 6x years respectively.

  I. 5 years ago, Arun's age = 2 x His son's age.

III. 5 years hence, Arun's Age = 12
Son's age 7

Clearly, any two of the above will give Arun's present age.

Correct answer is (D).

Discussion:
28 comments Page 3 of 3.
Akash said:   1 decade ago
How statement 3 is true? I can't get solution for 3rd statement.
Siddu said:   1 decade ago
Present : 11x, 6x

5 years ago
11(x-5), 6(x-5)=

11(x-5)= 2(6(x-5))
11x-55= 2(6x-30)
x=5
Garv said:   1 decade ago
Answer can be non of these

Five year ago

son's age-x
arun's age-2x
present age
(x+5)11=(2x+5)6
x=25 then present 30
after 5 year
son age 35
arun 60

Condition satisfied.
Harsha said:   1 decade ago
5 years hence means- after 5 years.
Poornima said:   1 decade ago
Can someone explain this?
Hema said:   1 decade ago
Please explain briefly.
Mahendra said:   1 decade ago
What is this question I didn't get the question itself, so kindly explain me please.
Anshu said:   1 decade ago
Please tell meaning of five year hence.
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