The table below shows the number of laptops sold by the 4 sellers and the ratio of Brand 1 laptops sold to Brand 2 laptops sold.
| Seller | Total laptops sold |
Brand 1 laptops sold: Brand 2 laptops sold |
| A | 4000 | 3 : 1 |
| B | 6000 | 2 : 1 |
| C | 8000 | 5 : 3 |
| D | 5000 | 1 : 4 |
The number of Brand 1 laptops sold by A seller is how many more than the number of Brand 2 laptops sold by B seller?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 1000.
Given that
The total laptops sold by A seller = 4000
The total laptops sold by B seller = 6000
According to the question
The number of Brand 1 laptops sold by A seller = 4000 × 3/4 = 3000
The number of Brand 2 laptops sold by B seller = 6000 × 1/3 = 2000
Hence, the required value = 3000 - 2000 = 1000