The value of x, for 4(2x - 5) < 2x + 28, x ∈ R, is :

1. x > 8

2. x < 8

3. x > -8

4. x < -8

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}

x(8 - x) > 0 and x ∈ N gives :

1. 0 ≤ x < 8

2. 1 < x ≤ 8

3. 0 < x < 8

4. 0 ≤ x ≤ 8

State, true or false :

(i) x < -y ⇒ -x > y

(ii) -5x ≥ 15 ⇒ x ≥ -3

(iii) 2x ≤ -7 ⇒ $\dfrac{2x}{-4} \ge \dfrac{-7}{-4}$

(iv) 7 > 5 ⇒ $\dfrac{1}{7} \lt \dfrac{1}{5}$