If x ∈ W, then solution set of inequation -x > -7, is :

1. {8, 9, 10, …..}

2. {0, 1, 2, 3, 4, 5, 6}

3. {0, 1, 2, 3, ….}

4. {-8, -9, -10, ….}

The solution set for the inequation -2x + 7 ≤ 3, x ∈ R is :

1. {x : x ∈ R, x < 2}

2. {x : x ∈ R, x > 2}

3. {x : x ∈ R, x ≤ 2}

4. {x : x ∈ R, x ≥ 2}

For 7 - 3x < x - 5, the solution set is :

1. x > 3

2. x < 3

3. x ≥ 3

4. x ≤ 3

x(8 - x) > 0 and x ∈ N gives :

1. 0 ≤ x < 8

2. 1 < x ≤ 8

3. 0 < x < 8

4. 0 ≤ x ≤ 8