The number of students in a school increases and decreases by 10% respectively in every alternate year. If there was increase in the year 2000 then in how much percentage what happened in the number of students in the vear 2003 in comparison to year 2000.

Deepak starts the month of February with provisions expected to last for the entire month. After few days, he find that the provisions will be short by 10 days and it is calculated that if the provisions left is immediately tripled, it will complete the shortfall. If the provisions left is doubled instead of being tripled, and simultaneously the diet of the Deepak is decreased by 20%, then the provisions will fall short by-

The monthly income of a person was ₹ 13,500 and his monthly expenditure was ₹ 9,000. Next year his income increased by 14% and his expenditure increased by 7%. The per cent increase in his savings was  

When the price of an audio system was reduced by 20%, the sale increased by 80%. What was the net effect on the sale?

In an examination, 92% of the students passed and 480 students failed. If so, how many students appeared in the examination?

If the sales tax be reduced from % to %, what difference does it make to person who purchases an article whose marked price is Rs.8400? 

Ramesh scored 73 marks in subject A . He scored 56% marks in subject B and X marks in subject C. maximum marks in each subject were 150. The overall percentage marks obtained by Ramesh in all the three subject together was 54%. How many marks did he score in Subject C?

Two students appeared for an examination. One student who scored 20 marks more than the other, his score was 60 % of the sum of their marks. What was his score?