mixtures

Several litres of milk were drawn off a 54 litre vessel full of milk and an equal volume of water added. Again the same volume of mixture was drawn off. As a result the mixture in the vessel contains 24 litres of pure milk. How much milk was drawn off initially?

 

Ratio and proportions

In a certain test, the number of successful candidates was three times than that of unsuccessful candidates. If there had been 16 fewer candidates and if 6 more would have been unsuccessful, the numbers would have been as 2 to 1. Find the number of candidates. 

ratio and proportion

There has been increment in the wages of labourers in a factory in the ratio of 22 : 25, but there has also been a reduction in the number of labourers in the ratio of 15 : 11. Find out in what ratio the total wage bill of the factory would be increased or decreased. 

ratio and proportion

The ratio of work done by (x–1) men in (x+1) days to that of (x+2) men in (x–1) days is9 : 10 , find the value of x