The number of green grapes is the same as the number of red grapes in a bag. After removing
15 of the grapes, there were 46 green grapes and 50 red grapes left in the bag. Then, another 30 green grapes and 30 red grapes were removed and there were
310 of the grapes left in the end. How many green grapes were removed altogether?
| |
Green Grapes |
Red Grapes |
Total |
| Before |
1 p
60 |
1 p
60 |
10 u |
| Change 1 |
- ? (15 of the total) |
- 7 u |
| After 1 |
46 |
50 |
| Change 2 |
- 30 |
- 30 |
| After 2 |
36 |
3 u |
Number of grapes left
= 46 + 50 - 30 - 30
= 36
3 u = 36
1 u = 36 ÷ 3 = 12
Total number of grapes at first
= 10 u
= 10 x 12
= 120
Number of green grapes at first
= 120 ÷ 2
= 60
Number of green grapes removed at first
= 60 - 46
= 14
Total number of green grapes removed
= 14 + 30
= 44
Answer(s): 44
