Aptitude - Problems on Ages - Discussion
Discussion Forum : Problems on Ages - Data Sufficiency 2 (Q.No. 1)
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. |
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 2 of 3.
Raghavendra said:
10 years ago
There are two unknowns and requires no more than 2 equations to determine all unknowns! No need to calculate anything!
Nish said:
10 years ago
Condition 1 and 2, 1 and 3 are enough. But 2 and 3 are note sufficient. Hence answer cannot be any two of above.
Amal said:
1 decade ago
All the statements are true. But there is a logic. What dose "only "means? I think the answer is "E".
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
5 years ago
11(x-5), 6(x-5)=
11(x-5)= 2(6(x-5))
11x-55= 2(6x-30)
x=5
Chetan said:
10 years ago
For son's present age = 30 and father's present age = 55 all the conditions satisfy.
Chetan said:
10 years ago
For son's present age = 30 and father's present age = 55 all the conditions satisfy.
Mahendra said:
1 decade ago
What is this question I didn't get the question itself, so kindly explain me please.
Datta said:
1 decade ago
11:6, so 11x:6x.
5 years ago 11(x-5) = 6(x-5).
11(x-5) = 2(6(x-5)).
Hence x = 5.
5 years ago 11(x-5) = 6(x-5).
11(x-5) = 2(6(x-5)).
Hence x = 5.
Akash said:
1 decade ago
How statement 3 is true? I can't get solution for 3rd statement.
Gopi krishna Arava said:
1 decade ago
X value is ok. But how can it satisfied both I and II rule?
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