Question : A man buys 15 pens for a rupee. How many pens should he sell for a rupee to earn a profit of 50 percent?
Option 1: 6
Option 2: 8
Option 3: 10
Option 4: 12
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Correct Answer: 10
Solution : The man buys 15 pens for a rupee, so the cost price of each pen is $\frac{1}{15}$ rupees. To earn a profit of 50%, the selling price of each pen should be $\frac{1}{15} ×\frac{150}{100}= \frac{1}{10}$ rupees If in $\frac{1}{10}$ rupees he sells 1 pen, then in Re. 1, he sells 10 pens. Hence, the correct answer is 10.
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Question : A man buys 13 pens for a rupee. How many pens should he sell for a rupee to earn a profit of 30%?
Option 1: 8
Option 2: 10
Option 3: 5
Option 4: 15
Question : A boy buys candies at 6 for a rupee. How many candies should he sell for a rupee to earn a profit of 20%?
Option 1: 4
Option 2: 3
Option 3: 7
Option 4: 5
Question : A man buys 10 oranges for a rupee and sells 8 oranges for a rupee. What is the profit percentage?
Option 1: 10
Option 2: 12.5
Option 3: 20
Option 4: 25
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
Question : A child has 50 paisa coins and 1 rupee coin. The ratio of several 50 paise and 1 rupee coins is 4 : 3. If he has an amount of Rs. 10, then how many 50 paisa coins does he have?
Option 1: 12
Option 3: 8
Option 4: 16
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