A tank contains 1000 litres of water and it flows out at the rate of 5 litres per second. How much water is there in the tank after each second? Write their numbers as a sequence.

1 (1)/(2) litres of water is needed to fill (3)/(4) of a can. How much water is needed to fill it completely?

In the staircase shown here the height of the first step is 10 centimetres and the height of each step after it is 17.5 centimetres. Write these numbers as a sequence.

A rectangular tank of length 4 metres and height 2 (1)/(2) metres can contain 15000 litres of water. What is the breadth of the tank?

A large tank containing water has a small hole near the bottom of the tank 1.5 m below the surface of water. What is the velocity of water flowing from the hole?

5 (1)/(4) litre of water is to be stored in (3)/(4) Iitre bottles. How many bottles do we need?

A large tank containing water has a small hole near the bottom of the tank 1.5 m below the surface of water. Where must a second hole to be drilled so that the velocity of water leaving this hole is half of water flowing through the first hole?