JEE Main · 2020 · 06 Sep 2020 · Shift 2 · Mathematical Reasoning *

1. (A)For an integer $n$, if $n$ is even, then $n^3-1$ is odd.✓ Correct
2. (B)For an integer $n$, if $n^3-1$ is not even then $n$ is not odd.
3. (C)For an integer $n$, if $n$ is even, then $n^3-1$ is even.
4. (D)For an integer $n$, if $n$ is odd, then $n^3-1$ is even.

Answer: (A)

JEE Main · 2020 · 06 Sep 2020 · Shift 2 · Single correct option