Question : The table given below shows the cost price and selling of four different articles.
| Articles | Cost price | Selling price |
| J | 650 | 750 |
| K | 370 | 450 |
| L | 450 | 650 |
| M | 590 | 650 |
What is the difference between the average selling price and the average cost price of all the articles?
Option 1: 110
Option 2: 160
Option 3: 710
Option 4: 140
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Correct Answer: 110
Solution :
Average SP = $\frac{750 + 450 + 650 + 650}{4} = \frac{2500}{4}=625$
Average CP = $\frac{650 + 370 + 450 + 590}{4} = \frac{2060}{4} = 515$
Difference = 625 – 515 = 110
Hence, the correct answer is 110.
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