The volume of a cylindrical tank, 10m high is 385m³. Find the diameter of the tank [Take $\pi =\tfrac{22}{7}$]

A circular pond of radius 4m has a path of with  2.5m round it. Find, correct to two decimal places, the area of the path[Take $\pi =\tfrac{22}{7}$ ]

The diagonal of a square is 60cm. Calculate its perimeter.

If the total surface area of a solid hemisphere equal to its volume. Find the radius

The dimension of a water are 13cm, 10cm, and 70cm . If it is half-filled with water. Calculate the volume of water in litres.

Water flows out of a pipe at a rate of 40πcm³ per second into an empty cylindrical container of base radius 4cm. Find the height of water in the container after 4 seconds

A rectangular packet has inner dimension 16cm by 12cm by 6cm. How many cubes of sugar of sides 2cm can be nearly packed into the pack

The total surface area of the walls of a room, 7m long, 5m wide and xm high is 96m². Find the value of x

What is the total surface area of a closed cylinder of height 10cm and diameter 7cm (Take $\pi =\tfrac{22}{7}$)

The figure shows a quadrilateral PQRS having equal sizes and opposites sides parallel. The diagonal PR  and OS intersected perpendicularly at O, which of the following statements cannot be correct