One-third of a bamboo pole is buried in mud, one-sixth of it is in water and the part above the water is greater than or equal to 3 metres. Find the length of the shortest pole.

If x ∈ {-3, -1, 0, 1, 3, 5}, then the solution set of the inequation 3x – 2 ≤ 8 is

1. {-3, -1, 1, 3}
2. {-3, -1, 0, 1, 3}
3. {-3, -2, -1, 0, 1, 2, 3}
4. {-3, -2, -1, 0, 1, 2}

If x ∈ W, then the solution set of the inequation 5 - 4x ≤ 2 - 3x is

1. {…, -2, -1, 0, 1, 2, 3}
2. {1, 2, 3}
3. {0, 1, 2, 3}
4. {x : x ∈ R, x ≤ 3}

If x ∈ I, then the solution set of the inequation 1 < 3x + 5 ≤ 11 is

1. { -1, 0, 1, 2}
2. { -2, -1, 0, 1}
3. { -1, 0, 1}
4. {x : x ∈ R, -$\dfrac{4}{3}$ $\lt$ x $\le$ 2}