Multiple choice

A shopkeeper sold 12 cameras at a profit of 20% and 8 cameras at a profit of 10%. If he had sold all the 20 cameras at a profit of 15%, then his profit would have been reduced by Rs 36. What is the cost price of each camera? एक दुकानदार ने 12 कैमरे 20% के लाभ पर और 8 कैमरे 10% के लाभ पर बेचे। यदि वह सभी 20 कैमरों को 15% के लाभ पर बेच देता, तो उसका लाभ 36 रुपये कम हो जाता। प्रत्येक कैमरे का लागत मूल्य क्या है?

  1. 100

  2. 150

  3. 180

  4. 220

  5. None of these इनमें से कोई नहीं
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Let CP be the cost price of each camera. Actual profit: 12 × 0.20 × CP + 8 × 0.10 × CP = 2.4CP + 0.8CP = 3.2CP. If all 20 sold at 15%: 20 × 0.15 × CP = 3CP. Difference = 3.2CP - 3CP = 0.2CP = 36. Therefore CP = 36/0.2 = Rs 180. This matches option C.

Keep practicing — related questions