Consider the given question and decide which of the following statement(s) is/are sufficient to answer the question.

Is (X – 5) even? X is a real number.

Statement:

  1. X – 15 belongs to integer
  2. X – 10 is an odd integer

This question was previously asked in
RRB ALP Previous Paper 1 (Held On: 9 Aug 2018 Shift 1)
View all RRB ALP Papers >
  1. Both statements 1 and 2 are sufficient
  2. Statement 2 alone is sufficient while statement 1 alone is insufficient
  3. Neither statement 1 nor 2 is sufficient
  4. Statement 1 alone is sufficient while statement 2 alone is insufficient

Answer (Detailed Solution Below)

Option 2 : Statement 2 alone is sufficient while statement 1 alone is insufficient
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Detailed Solution

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Statement 1:

X – 15 = integer

⇒ X is also an integer

Statement 2:

X – 10 = odd integer

⇒ X is an odd integer.

⇒ (X – 5) is even.

∴ Statement 2 alone is sufficient while statement 1 alone is insufficient.
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