The number of red apples is the same as the number of green apples in a bag. After removing
25 of the apples, there were 22 red apples and 158 green apples left in the bag. Then, another 45 red apples and 45 green apples were removed and there were
310 of the apples left in the end. How many red apples were removed altogether?
| |
Red Apples |
Green Apples |
Total |
| Before |
1 p
150 |
1 p
150 |
10 u |
| Change 1 |
- ? (25 of the total) |
- 7 u |
| After 1 |
22 |
158 |
| Change 2 |
- 45 |
- 45 |
| After 2 |
90 |
3 u |
Number of apples left
= 22 + 158 - 45 - 45
= 90
3 u = 90
1 u = 90 ÷ 3 = 30
Total number of apples at first
= 10 u
= 10 x 30
= 300
Number of red apples at first
= 300 ÷ 2
= 150
Number of red apples removed at first
= 150 - 22
= 128
Total number of red apples removed
= 128 + 45
= 173
Answer(s): 173
