If the sum of three numbers in A.P. is 48; then the middle term is :

1. 16

2. 18

3. 12

4. 6

The point P(-6, -3) is reflected in line y + 3 = 0 to point P'. The co-ordinates of point P' are :

1. (-6, 3)

2. (-6, -3)

3. (6, 3)

4. (6, -3)

A cylindrical can with radius 10 cm and height 20 cm, is kept on a horizontal surface and then filled with water upto 10 cm. The total wetted surface of the can is. (Take π = 3.14)

1. 871 cm²

2. 624 cm²

3. 314 cm²

4. 942 cm².

The solution set for -3 < x - 2 ≤ 9, x ∈ Z (integers) is :

1. {0, 1, 2, 3, 4, ………, 11}

2. {1, 2, 3, 4, ……., 10}

3. {-1, 0, 1, 2, 3, ……, 10}

4. {1, 2, 3, 4, 5, ……., 11}