Question : The ratio of sand to stone in a mixture is 5 : 8 while that between stone and cement is 32 : 35. What is the ratio of sand to cement in the mixture?

Question : A bottle holds 8 litres of a mixture of milk and water in a ratio of 3 : 1. 3 litres of water is added to the given mixture. Find the new ratio of milk and water in the mixture.

Question : Mounds of sand formed by wind action are called:

Question : The rhythmic rise and fall of ocean water twice in a day is called a ______.

Question : In a 255-litre mixture of milk and water, the ratio of milk and water is 4 : 1. Find the quantity of water required to make the ratio of milk and water 4 : 3.