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 difference between the value of the number increased by 20 % and the value of the number decreased by 25 % is 36. Find the number. 

Vikram gives 35% of the money he had to his wife and gave 50% of the money he had to his sons. Remaining amount of Rs. 11,250 he kept for himself. What was the total amount of money Vikram had?

A table is sold at a profit of 20%. If both the cost price and the selling price of the table are decreased by Rs. 100, then new profit percent becomes 25%.Find the original cost price of  table.

In an office, 40 % of the staff is female. 70 % of the female staff and 50 % of the male staff are married. The percentage of the unmarried staff in the office is 

Average salary of Santosh and Renu is Rs 3600. If salary of Santosh and Renu is increased by 50% and 30% respectively then their total salary is increased by 35% then find salary of Renu is what percent more or less than salary of Santosh before increment?

 A student scored 32 % marks in science subjects out of 300. How much should he score in language papers out of 200 if he is to get overall 46 % marks? 

What percentage of the whole week does Ajay spend in office, if his office hours are 9 am to 5 pm from Monday to Friday?