Multiple choice

A trader bought 80 chairs. He sells 50 chairs at a profit of Rs. 50 per chair and the remaining for Rs. 12000. What is the cost price of a chair if he gains 25% on the whole?

  1. Rs. 250

  2. Rs. 290

  3. Rs. 310

  4. Rs. 325

  5. Rs. 330
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Total chairs = 80. 50 chairs sold at profit 50/chair. Let CP be x. SP of 50 chairs = 50(x+50). SP of 30 chairs = 12000. Total SP = 50x + 2500 + 12000 = 50x + 14500. Total CP = 80x. Gain 25% means 1.25 * 80x = 100x = 50x + 14500. 50x = 14500, x = 290.

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