Question : A number is first increased by 40% and then decreased by 25%, again increased by 15% and then decreased by 20%. What is the net increase/decrease percentage in the number?

Option 1: 7.2% decrease

Option 2: 6.4% increase

Option 3: 3.4% increase

Option 4: 3.4% decrease

Question : The length of a rectangle is increased by 10% and breadth is decreased by 10%. The area of the new rectangle is:

Option 1: neither increased nor decreased.

Option 2: increased by 1%.

Option 3: decreased by 2%.

Option 4: decreased by 1%.

Question : The price of an article is first increased by 25% and later on, the price was decreased by 30% due to a reduction in sales. Find the net percentage change in the final price of the article.

Option 1: 11.5% increased

Option 2: 14% decreased

Option 3: 13% increased

Option 4: 12.5% decreased

Question : A number is first decreased by 28% and then increased by 28%. The number so obtained is 784 less than the original number. Find the value of the original number.

Option 1: 1000

Option 2: 15000

Option 3: 10000

Option 4: 1500

Question : A number is first increased by 10% and then increased by 20%. The number, so obtained, is now decreased by 12%. What is the net increase or decrease percent in the original number?

Option 1: 16.16% increase

Option 2: 14.14% decrease

Option 3: 11.11% decrease

Option 4: 12.12% increase