Study the given table and answer the question that follows.
The following table shows the percentage distribution of students in four different schools during the years 2021-22.
| Year | Schools | |||
| School 1 | School 2 | School 3 | School 4 | |
| 2021 | 28 | 25 | 24 | 23 |
| 2022 | 27 | 28 | 23 | 22 |
If there was a total number of 16,000 and 18,000 students during the years 2021 and 2022 respectively, then the difference in number of students in school 4 in 2022 with respect to 2021 is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 280.
Total number of students in 2021 = 16000
Number of students in school 4 in 2021 = (23/100) × 16000 = 3680
Total number of students in 2022 = 18000
Number of students in school 4 in 2022 = (22/100) × 18000 = 3960
Difference = 3960 - 3680 = 280
Therefore, the difference in number of students in school 4 in 2022 with respect to 2021 is 280.