In two successive year 100 and 75 students of school appeared at the final examination. Respectively 75% and 60 % of them passed. The average rate of pass is:

The number of employers working in a farm is increased by 25% and the wages per head are decreased by 25%. If it result in x% decreased in total wages, then the value of x is : 

A worker suffers a 20% cut in his wage. He may regain his original wages by obtaining a rise of how much %?

A number if required by 25% becomes 225. By what percent should be increased so that it becomes 375?

Two numbers are respectively 20% and 50% of a third number. What percent is the first number of the second?

2,40,000 is taken as loan for three years compounded annually at 12.5 % p.a. At the end of first year, the interest is revised to 12 % p.a. The total amount to be repaid at the end of third year is:

A cloth merchant on selling 33 metres of cloth obtains a profit equal to the selling price of 11 metres of cloth , the profit is 

Vessels A and B contain mixture of milk and water in the ratios 4 : 5 and 5 : 1 respectively. In what ratio should quantities of mixture be taken from A and B to from a mixture in which milk to water is in the ratio 5 : 4 ?