The compound interest on a certain sum of money for 2 years at 5% is ₹328, then the sum is

• ₹ 3000

• ₹ 3600

• ₹ 3200

• ₹ 3400

The height of a cone is 30 cm. A small cone is cut off at the top by a plane parallel to the base. If its volume be 1/27 th of the volume of the given cone, at what height above the base is the section made?

• 19 cm

• 20 cm

• 12 cm

• 15 cm

3.

ABCD is a trapezium with AD and BC parallel sides. E is a point on BC. The ratio of the area of ABCD to that of AED is 

• 

• 

• 

• 

If the surface area of sphere is 346.5 cm², then its radius [ taking π = 22/7 ] is

• 7 cm

• 3.25 cm

• 5.25 cm

• 9 cm

An interior angle of a regular polygon is 5 times its exterior angle. Then the number of sides of the polygon is

• 14

• 16

• 12

• 18

The height of the right pyramid whose area of the base is 30m² and volume is 500 m³, is

• 50 m

• 60 m

• 40 m

• 20 m

The base of a right prism is a right angle triangle with two sides 5cm and 12 cm. The height of the prism is 10 cm. The height of the prism is 10 cm. The total surface area of the prism is

• 360 sq cm

• 300 sq cm

• 330 sq cm

• 325 sq cm

In an equilateral triangle of side 24 cm, a circle is inscribed touching its sides. The area of the remaining portion of the triangle is ( √3 = 1.732 )

• 98.55 sq cm

• 100 sq cm

• 101 sq cm

• 95 sq cm

The base of a right prism is an equilateral triangle. If the lateral surface area and volume is 120 cm², 40√3 cm³ respectively then the side of base of the prism is

• 4 cm

• 5 cm

• 7 cm

• 40 cm

Perimeter of a rhombus is 2p unit and sum of length of diagonals is m unit, then area of the rhombus is