The following table gives the number of different types of batteries sold by a company over the years (numbers in hundreds).
| Type of battery/Year | 7AH | 32AH | 35AH | 55AH |
| 2018 | 20 | 30 | 40 | 50 |
| 2019 | 40 | 35 | 45 | 45 |
| 2020 | 50 | 40 | 40 | 40 |
| 2021 | 40 | 50 | 50 | 45 |
| 2022 | 45 | 45 | 35 | 55 |
What is the difference in the number of 7AH batteries sold in 2021 and 2022?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 5000.
7AH batteries sold in 2021 = 40000
7AH batteries sold in 2022 = 45000
Required difference = 45000 - 40000 = 5000