Question
The simple interest received after 2 years on Rs (x +
800) at the rate of 20% p.a is Rs (2x – 1800). The amount received on Rs 4x when invested at 50% p.a compound interest, compounded annually for 2 years can be:Solution
The area of two similar triangles is 400 cm² and 324 cm², respectively. What is the ratio of their corresponding altitudes?
If the volume of a cuboidal tank is 3840 m3 and the ratio of the length, width and height of tank is 5:4:3 respectively then find the height ...
- Find the diameter of the incircle of a triangle whose semi-perimeter is 18 cm and area is 54 cm².
- Six cubes each of side 5 cm are attached end to end to form a cuboid. Find the total surface area of the cuboid.
If the length of the rectangular pipe is 2 times of its breadth and 5 times of its height. Find the total surface area if its volume is 600 cm³?
Cylinder radius = 7 cm, height = 12 cm. It is melted into cones of radius 3.5 cm, height 8 cm. Find number of cones.
Find the approximate volume of a right circular cone having diameter 14 cm and height 3cm.(Take pie = 3.14.)
The perimeter of a rhombus is 56 m and its height is 5 m. Its area is:

The perimeter of a rectangle is 68 cm more than its length. If the length and breadth of the rectangle are in the ratio 7:5, respectively, then find the...