A man buys 100 oranges for Rs. 400. 20 oranges are rotten and thrown away. At what rate per dozen should he sell the remaining oranges to gain 20% on the whole transaction? MCQ with Answer and Explanation
A man buys 100 oranges for Rs. 400. 20 oranges are rotten and thrown away. At what rate per dozen should he sell the remaining oranges to gain 20% on the whole transaction?
A. Rs. 60
B. Rs. 72
C. Rs. 64
D. Rs. 80
Answer: Option B
Solution (By JKSSB Mock Tests)
Total Cost Price = 400. Desired Total Selling Price = 400 * 1.20 = 480. Remaining oranges = 80. Selling Price per orange = 480 / 80 = 6. Selling Price per dozen = 6 * 12 = 72.
A grocer purchased 80 kg of sugar at Rs. 13.50 per kg and mixed it with 120 kg of sugar at Rs. 16 per kg. At what rate should he sell the mixture to gain 16%?
Explanation:
Total Cost = (80 * 13.50) + (120 * 16) = 1080 + 1920 = 3000. Total quantity = 200 kg. Cost Price per kg = 3000 / 200 = 15. Selling Price per kg for 16% gain = 15 * 1.16 = 17.40.
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