In an examination in which full marks were 500. A got 25% more than C, C got 20% less than D. If A got 360 marks. What percentage of full marks was obtained by D ? 

A man spends 75 % of his income. His income increased by 20 % and he increased his expenditure by 15 %. His savings will then be increased by: 

A man gives 20% of his money to his eldest son, 30% of remaining he gives to his younger son. 10% of the remaining he gives in a school for poor boys still he has Rs.100.80. Find his total sum. 

A student got 30% marks in an examination and failed because he got 12 marks less. Another student got 40% marks in the same examination and got 18 marks more than the minimum passing marks. Must have marks to pass

A dozen pairs of socks quoted at 180 are available at a discount of 20 %. How many pairs of socks can be bought for 48? 

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. 

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? 

If X is 20% less than Y, then find the value of $${Y-X\over Y}$$ and $${X\over X-Y }$$