Multiple choice

The cost price of 20 articles is the same as the selling price of x articles. If there is 25% gain, then the value of x- 20 वस्तुओं का क्रय मूल्य x वस्तुओं के विक्रय मूल्य के बराबर है। यदि 25% लाभ प्राप्त हो, x का मान है-

  1. 15

  2. 16

  3. 18

  4. 25
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let CP of 1 article = 1, so CP of 20 articles = 20. SP of x articles = 20, so SP of 1 article = 20/x. Gain = 25%, so 20/x = 1.25 x 1 = 1.25. Solving: 20/x = 5/4, so x = 16. Verify: CP of 20 = SP of 16, SP per article = 20/16 = 1.25, gain = 25%.

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