An orange vendor makes a profit of 20% by selling oranges at a certain price. If he charges Rs 1.2 higher per orange, he would gain 40%. Find the original price at which he sold an orange.
A
Rs 5
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B
Rs 4.8
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C
Rs 6
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D
None of these
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Solution
The correct option is D None of these By charging Rs 1.2 more, his profit should double to 40%. This means that his profit of 40% should be equal to Rs 2.4. Thus, his cost price must be Rs 6 and his original selling price should be 7.2. Hence, option (d) is correct.