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
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.
Related Questions
Question : The table given below shows the cost price and selling price of 5 different articles.
| Article | Cost price | Selling price |
| A1 | 350 | 450 |
| A2 | 550 | 550 |
| A3 | 450 | 650 |
| A4 | 250 | 550 |
| A5 | 150 | 650 |
What is the ratio of the cost price of A1 to the selling price of A4?
Option 1: 1 : 2
Option 2: 1 : 3
Option 3: 7 : 5
Option 4: 7 : 11
Question : The table given below shows the marked price and value of the discount of 7 articles.
| Articles | Marked price | Discount |
| D | 1100 | 500 |
| E | 700 | 200 |
| F | 900 | 500 |
| G | 600 | 400 |
| H | 400 | 300 |
| I | 500 | 200 |
| J | 1000 | 200 |
What is the average marked price of all the articles?
Option 1: 824.12
Option 2: 814.12
Option 3: 742.85
Option 4: 704.15
Question : The table given below shows the number of toys manufactured by five factories.
| Factory | Toys |
| F1 | 250 |
| F2 | 450 |
| F3 | 350 |
| F4 | 150 |
| F5 | 550 |
The number of toys manufactured by F2 is what percentage of the number of toys manufactured by F4?
Option 1: 200%
Option 2: 100%
Option 3: 300%
Option 4: 50%
Question : Calculate the mean from the following table.
| Scores | Frequencies |
| 0-10 | 2 |
| 10-20 | 4 |
| 20-30 | 12 |
| 30-40 | 21 |
| 40-50 | 6 |
| 50-60 | 3 |
| 60-70 | 2 |
Option 1: 34.2
Option 2: 33.4
Option 3: 32.6
Option 4: 35.8
Question : The table given below shows the number of people in different states.
| States | Number of people |
| F | 474 |
| G | 500 |
| H | 444 |
| I | 495 |
| J | 580 |
What is the average number of people in all the states?
Option 1: 396.5
Option 2: 482.5
Option 3: 498.6
Option 4: 476.6
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