Chocolates are bought at 9 for a rupee and an equal number more at 11 for a rupee If these are mixed...........

Quantitative Aptitude ( CCS) Profit and loss

Chocolates are bought at 9 for a rupee and an equal number more at 11 for a rupee. If these are mixed and sold at 10 for a rupee, then the loss or gain percent is

2% loss

1% profit

1% loss

2% profit

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Explanation:

Correct option 1: 1% loss

Step 1: Assume equal quantities
Let we buy 99 chocolates each (LCM of 9 and 11 = 99 for easier calculation).

Chocolates at 9 for Rs.1 → 99 chocolates cost ?11 (because 99 ÷ 9 = 11 rupees)
Chocolates at 11 for Rs.1 → 99 chocolates cost Rs. 9 (because 99 ÷ 11 = 9 rupees)

Total chocolates = 198
Total cost = Rs. 20

Step 2: Selling price
Sold at 10 for Rs.1 → 198 ÷ 10 = 19.8 rupees

Selling Price = Rs.19.80

Step 3: Profit or Loss
Cost Price = Rs.20
Selling Price = Rs.19.80
Loss = Rs.0.20

Loss % = (Loss ÷ Cost Price) × 100

= (0.20/20)x100= 1%