11.

Three solid spheres of radii 3 cm, 4 cm and 5 cm respectively are melted and made a large solid sphere. Radius of this sphere

• 12

• 10

• 6

• 4

How many lines of symmetry does a Rhombus have?

• 1

• 2

• 3

• 4

What is the area of an equilateral triangle of side 16 cm?

• $48\sqrt{3} \mathrm{sq}.\mathrm{cm}$

• $128\sqrt{3} \mathrm{sq} \mathrm{cm}$

• $96\sqrt{3} sq cm$

• $64\sqrt{3} \mathrm{sq} \mathrm{cm}$

Find the median of the data
10, 8, 5, 3, 9, 6, 12, 14, 13, 7, 1

• 8

• 10

• 9

• 14

The remainder obtained when 4⁹⁶ is divided by 6 is

• 3

• 4

• 5

• 6

For what value of k, the points A(3, 4), B (5, k) and C (- 3, 1) are collinear ?

• 2

• 3

• 4

• 5

$3\frac{5}{6} + 6\frac{1}{7} - 2\frac{1}{3} -1\frac{1}{2} = ?$

• $6\frac{1}{7}$

• $6\frac{1}{21}$

• $6\frac{5}{28}$

• $6\frac{1}{14}$

$5 + \frac{1}{5 + {\displaystyle \frac{1}{5 + {\displaystyle \frac{1}{5 + ...}}}}}$

• $\frac{11}{2}$

• $\frac{\sqrt{29} +\hspace{0.17em}1}{2}$

• $\frac{\sqrt{13} + 1}{2}$

• $\frac{\sqrt{29} + 5}{2}$

$\mathrm{If} {\mathrm{x}}^2 + \frac{1}{{\mathrm{x}}^2} = 34, \mathrm{then} \mathrm{find} \mathrm{the} \mathrm{value} \mathrm{of} \mathrm{x} + \frac{1}{\mathrm{x}}$

• 4

• 6

• 8

• 17

What value should come in place of question mark ?

(1.06 + 0.04)² - ? = 4 x 1.06 x 0.04

• 1.0404

• 1.4

• 1.5

• 1.45