Question : If each side of a square is decreased by 17%, then by what percentage does its area decrease?

Option 1: 25%

Option 2: 30.79%

Option 3: 31.11%

Option 4: 44.31%

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 : 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 : If the length of a rectangular plot of land is increased by 5% and the breadth is decreased by 10%, how much will its area increase or decrease?

Option 1: 6.5% increase

Option 2: 5.5% decrease

Option 3: 5.5% increase

Option 4: 6.5% decrease

Question : If the area of a square is decreased by 19%, then the diagonal of the square is decreased by:

Option 1: 10%

Option 2: 15%

Option 3: 5%

Option 4: 12%