Read the following tables carefully and answer the question:
| Years | Total admission in schools A and C | Ratio of admission in schools B to C | Total admission in school A |
|-------|-----------------------------------|-------------------------------------|-----------------------------|
| 2017 | 630 | 5:9 | 360 |
| 2018 | 1050 | 7:5 | 750 |
| 2019 | 715 | 5:8 | 315 |
| 2020 | 840 | 11:19 | 460 |

What is the ratio of the tot
Find the difference between the total number of admissions of students in schools A and B together in 2017 and the number of admissions of students in school C in 2019 and 2020 together.

Question

Read the following tables carefully and answer the question:
| Years | Total admission in schools A and C | Ratio of admission in schools B to C | Total admission in school A |
|-------|-----------------------------------|-------------------------------------|-----------------------------|
| 2017  | 630                               | 5:9                                 | 360                         |
| 2018  | 1050                              | 7:5                                 | 750                         |
| 2019  | 715                               | 5:8                                 | 315                         |
| 2020  | 840                               | 11:19                               | 460                         |

What is the ratio of the tot
Find the difference between the total number of admissions of students in schools A and B together in 2017 and the number of admissions of students in school C in 2019 and 2020 together.

Accepted Answer

**Solution:**

1. From the given data, find the total admissions in schools A and B together in 2017:
   - Admissions in school A (2017) = 360
   - Admissions in school B (2017) = 150
   - Total (A + B) in 2017 = 360 + 150 = 510

2. Find the total admissions in school C in 2019 and 2020:
   - Admissions in school C (2019) = 400
   - Admissions in school C (2020) = 380
   - Total (C in 2019 and 2020) = 400 + 380 = 780

3. Calculate the difference:
   $$	ext{Difference} = (A + B)_{2017} - C_{2019+2020} = 510 - 780 = -270$$

Since the question asks for the difference, the absolute value is taken:

$$| -270 | = 270$$

**Answer:** 270

Answer

Answer

Answer

Answer