The solution for 1 < 3 - 2x ≤ 7; x ∈ N (Natural numbers) is :

1. {8}

2. {-1, -2}

3. { }

4. {1}

P(m, m - 2) is the mid-point of the line segment AB, where A = (4, 6) and B = (-4, -10), then the value of m is :

1. 0

2. -2

3. 2

4. 4

In the given figure, O is the center of the circle, ∠AOB = 90° and ∠ABC = 30°, the measure of ∠CAO is :

1. 45°

2. 90°

3. 60°

4. 75°