A shopkeeper sells a transistor at 15% above its cost price. If he had bought it at 5% more than what he paid for it and sold it for Rs. 6 more, he would have gained 10%. Find the cost price of the transistor. MCQ with Answer and Explanation
A shopkeeper sells a transistor at 15% above its cost price. If he had bought it at 5% more than what he paid for it and sold it for Rs. 6 more, he would have gained 10%. Find the cost price of the transistor.
A. Rs. 1200
B. Rs. 600
C. Rs. 1000
D. Rs. 800
Answer: Option A
Solution (By JKSSB Mock Tests)
Let initial Cost Price = 100x. Initial Selling Price = 115x. New Cost Price = 105x. New Selling Price = 105x * 1.10 = 115.5x. Difference in Selling Price = 115.5x - 115x = 0.5x. 0.5x = 6. x = 12. Cost Price = 100 * 12 = 1200.
A man purchased 40 apples for Rs. 320. He sells 15 at a 20% profit and 15 at a 10% loss. At what profit percentage should he sell the remaining 10 apples to achieve an overall profit of 15%?
Explanation:
Total Cost Price = 320. Desired profit = 15% of 320 = 48. Cost Price of 15 apples = 120. Profit on 15 apples = 24. Loss on 15 apples = 12. Net profit so far = 12. Profit needed on remaining 10 apples = 48 - 12 = 36. Cost Price of remaining 10 apples = 80. Profit percentage = (36 / 80) * 100 = 45%.
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