Question 41

Read the following question and decide which of the given statements is/are sufficient.
If X is a natural number, is X+6 odd ?
Statements:
1. X-15 is a whole number.
2. X-6 is an odd number.

Solution

1 alone is not sufficient as X can be any value and X - 15 can be either even or odd.
If X-a is an odd number, then X+a is also an odd number and the same rule applies for even numbers.
Hence, If X-6 is an odd number then X+6 is also an odd number.
Hence, Only Statement 2 is sufficient to answer.


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