A man sells a desk at 12% profit. Had he bought it for 10% less and sold it for Rs. 32 more, he would have made a 30% profit. What is the cost price?
Correct answer C. Rs. 640
Explanation
Let CP = x. Then 1.12x + 32 = 1.30 × 0.9x = 1.17x. So 0.05x = 32 and x = Rs. 640.
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