The price of an article is decreased by 10%. To restore it to its former value, the new price must be increased by

• 

• 10%

• 11%

• 11%

A Number is increased by 20%. To get back to the original number, the increased number is to be reduced by

• 20%

• 21%

• 
• 

A Village lost 12% of its goats in a flood and 5% of remainder died from diseases. If the number left now is 8360. What was the original number before the flood?

• 1000

• 10000

• 1,00,000

• 1,00,000

A scored 72% in a paper with a maximum marks of 900 and 80% in another paper with maximum marks of 700. If the result is based on the combined percentage of two papers, the combined percentage is

• 75.5%

• 76%

• 76.5%

• 76.5%

An army lost 10% of its men in war, 10% of the remaining died due to disease and 10% of the rest were declared disabled. Thus the strength of the army was reduced to 7,29,000 active men. The original strength of the army was

• 1500000

• 1000000

• 1200000

• 1200000

From 1980 - 1990, the population of a country increased by 20%.
From 1990 - 2000, the population of the country increased by 20%.
From 2000 - 2010, the population of the country increased by 20%.
Then the overall increased population (in percentage) of the country from 1980 -2010 was

• 72.2 %

• 60 %

• 72.8 %

• 72.8 %

Two years ago, the value of my motorbike was ₹ 62500. If the value depreciates by 4% every year, now its value is

• ₹ 56700

• ₹ 57600

• ₹ 57500

• ₹ 57500

The number that is to be added to 10% of 320 to have the sum as 30% of 230 is

• 37

• 32

• 23

• 23

The strength of a school increases and decreases by in every alternate year by 10%. It started with increase in 2000. Then the strength of the school in 2003 as compared to that in 2000 was

• increased by 8.9%

• decreased by 8.9%

• increased by 9.8%

• increased by 9.8%

In a class there are'z' students. Out of them 'x' are boys. What part of the class is composed of girls?