Multiple choice

The ratio selling price of three article is 27:26:42. If the profit percent of first and second article is 20% and 30% respectively. The loss percent on third article is 20%. find the ratio of cost price of given article. तीन वस्तुओं के विक्रय मूल्य का अनुपात 27 : 26 : 42 है। यदि पहली तथा दूसरी वस्तु पर हुआ प्रतिशत क्रमशः 20% और 30% है तथा तीसरी वस्तु पर हुआ हानि प्रतिशत 20% है, तो वस्तुओं के क्रय मूल्य का अनुपात ज्ञात कीजिए।

  1. 27:24:53

  2. 9:8:21

  3. 9:8:20

  4. 3:8:27

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

Let the cost prices be C1, C2, C3. Selling prices are in ratio 27:26:42. Using the profit/loss formulas: C1 = 27/1.2, C2 = 26/1.3, C3 = 42/0.8. This gives C1:C2:C3 = (27/1.2):(26/1.3):(42/0.8) = 22.5:20:52.5 = 9:8:21 (dividing by 2.5). Option B is correct; option C has 20 instead of 21, which is a common calculation error.