Question Details

X said to Y, “At the time of your birth I was twice as old as you are at present.” If the present age of X is 42 years, then consider the following statements:


1. 8 years ago, the age of X was five times the age of Y.

2. After 14 years, the age of X would be two times the age of Y.

Which of the above statements is/are correct?

Options

A

1 only

B

2 only

C

Both 1 and 2

D

Neither 1 nor 2

Show Answer

Correct Answer :

Option B

2 only

Solution :

The correct option is 2 only.

Let's solve the problem step-by-step to verify the given statements.

Step 1: Determine the present ages of X and Y.
Let the present age of Y be y years.
We are given that the present age of X is 42 years.

According to the statement made by X: "At the time of your birth I was twice as old as you are at present."
Y was born y years ago.
Therefore, the age of X at the time of Y's birth was:

42-y

According to the condition given in the question, this age was equal to twice Y's present age (2y):

42-y=2y

Solving for y:

3y=42

y=14

So, the present age of Y is 14 years, and the present age of X is 42 years.

Step 2: Evaluate Statement 1.
Statement 1 says: "8 years ago, the age of X was five times the age of Y."
Let's find their ages 8 years ago:

Age of X 8 years ago = 42-8=34 years

Age of Y 8 years ago = 14-8=6 years

Now, check if X's age was five times Y's age:

5×6=30

Since 34 ≠ 30, Statement 1 is incorrect.

Step 3: Evaluate Statement 2.
Statement 2 says: "After 14 years, the age of X would be two times the age of Y."
Let's find their ages after 14 years:

Age of X after 14 years = 42+14=56 years

Age of Y after 14 years = 14+14=28 years

Now, check if X's age will be two times Y's age:

2×28=56

Since 56 = 56, Statement 2 is correct.

Therefore, only statement 2 is correct.

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