Question

:) I am 16 years old. My sister is elder to me. She is
(a) 18 years old na (b) 15 years old
(c) 14 years old
(d) 10 years old
brotodon
C​

Answer 1

Explanation:

Option a) $18 years$ old

Older or elder in reference to age means more in age.

In this question the person asking the questions says that his/her sister is elder to him/her.

This means that the age of the sister is more than the person asking the question and the age of the person asking the question is $16$.

In a number line, as we move from left to right - the value of numbers increase, that is, number on the left of a reference point are lesser in value and numbers on the right of a reference point are greater in value.

In this question, we take the age of the person asking the question i.e $16$ as our reference point.

As we know that in a number line, numbers $10 , 14 , 15$ are on the left of $16$ and only $18$ comes on the right of $16$.

Hence, out of the options given, only $18$ is a number more in value than $16$.

All the other options that are $10, 14$ and $15$ are less in value than $16$.

Hence the answer is $18$ year old.

Note:- Question should be like

I am 16 years old. My sister is elder to me. She is

(a) 18 years old  

(b) 15 years old

(c) 14 years old

(d) 10 years old