Question : If bananas are bought at the rate of 4 for a rupee, how many must be sold for a rupee to gain $33\frac{1}{3}\%$?

Option 1: 2.5

Option 2: 2

Option 3: 3

Option 4: 4

Question : A fruit vendor bought bananas at the rate of 5 for a rupee and sold them 4 for a rupee. The percentage gain or loss is:

Option 1: $12\frac{1}{2}$% gain

Option 2: $25$% loss

Option 3: $25$% gain

Option 4: $12\frac{1}{2}$% loss

Question : A person having bought goods for Rs. 400 sells half of it at a gain of 5%. At what gain percentage must he sell the remainder, so as to gain 25% on the whole?

Option 1: 30%

Option 2: 25%

Option 3: 20%

Option 4: 45%

Question : A person bought some pens at the rate of 25 for a rupee and sold them at the rate of 20 for the rupee. What is the profit percentage?

Option 1: 30 percent

Option 2: 10 percent

Option 3: 25 percent

Option 4: 15 percent