Question 29

Consider the given question and decide which of the following statements is sufficient to answer the question.
How old was X on 15 January 2017?
Statements:
1. X is 50 years older than his brother Y.
2. Y is 20 years younger than this mother.

Solution

Let age of mother is A

from statement 2 y is 20 year younger than this mother. i.e=A-20

From statement 1 X is 50 years older than his brother Y.i.e Y+50

From both statement we cant found the age of x

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