Multiple choice

A salesman sells a commodity at 10% profit. If he had bought it at 10% less and sold it for Rs 4 less, then he would have gained 50/3%. The cost price of the commodity is - एक विक्रेता 10% लाभ पर एक वस्तु बेचता है। अगर उसने इसे 10% कम पर खरीदा और इसे 4 रुपये कम में बेचा, तो उसे 50/3% का फायदा हुआ। वस्तु की लागत मूल्य है -

  1. 120

  2. 80

  3. 60

  4. 90

  5. None of these इनमे से कोई नही|

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let CP = x. Original SP = 1.1x. New CP = 0.9x, new SP = 1.1x - 4. New profit = (1.1x - 4 - 0.9x) / 0.9x = (0.2x - 4) / 0.9x = 50/3% = 1/6. Solving: (0.2x - 4) / 0.9x = 1/6, 6(0.2x - 4) = 0.9x, 1.2x - 24 = 0.9x, 0.3x = 24, x = 80.