Let p q r and s be distinct positive integers Let p q be odd and r s be even Consider the following ...........

Math and Mental Ability Number System

Let p, q, r and s be distinct positive integers. Let p, q be odd and r, s be even. Consider the following statements

1. (p - r)² (qs) even.

2. (q - s)q² s is even.

3. (q + r)² (p + s) is odd.

Which of the statements given above are correct?

This questions was previously asked in

UPSC CSAT, Previous year (2024)

1 and 2 only

2 and 3 only

1 and 3 only

1, 2 and 3

1, 2 and 3

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