The centroid of the triangle whose vertices are (-4, -2), (6, 2) and (4, 6) is :

1. (2, 2)

2. (2, 3)

3. (3, 3)

4. (0, -1)

The n^th term of an Arithmetic Progression (A.P.) is 2n + 5. The 10^th term is :

1. 7

2. 15

3. 25

4. 45

Which of the following cannot be determined graphically for a grouped frequency distribution ?

1. Median

2. Mode

3. Quartiles

4. Mean

Volume of a cylinder of height 3 cm is 48π. Radius of the cylinder is :

1. 48 cm

2. 16 cm

3. 4 cm

4. 24 cm