Question : A's salary is 50% more than that of B. Then B's salary is less than that of A by:

Option 1: $50$%

Option 2: $33\frac{1}{3}$%

Option 3: $33\frac{1}{4}$%

Option 4: $44\frac{1}{4}$%

Question : If A's salary is 40% less than that of B, how much percent is B's salary more than that of A?

Option 1: $33\frac{1}{3}\%$

Option 2: $66\frac{2}{3}\%$

Option 3: $33\frac{2}{3}\%$

Option 4: $66\frac{1}{3}\%$

Question : Three years ago, Raman’s salary was INR 45,000. His salary is increased by 10 percent, A percent and 20 percent in the first, second and third year respectively. Raman's present salary is INR 83,160. What is the value of A?

Option 1: 50

Option 2: 30

Option 3: 54

Option 4: 40

Question : By selling a watch for INR 2,000, a shopkeeper loses 20%. How much would he gain or lose by selling it for INR 3,000?

Option 1: 20% gain

Option 2: 25% gain

Option 3: 15% loss

Option 4: 25% loss

Question : If the radius of a right circular cylinder open at both ends is decreased by 25% and the height of the cylinder is increased by 25%, the curved surface area of the cylinder thus formed:

Option 1: remains unaltered

Option 2: is increased by $25\%$

Option 3: is increased by $6.25\%$

Option 4: is decreased by $6.25\%$