Cathy had 70 strawberry and apricot wafers. After giving away
13 of her strawberry wafers and 20 of her apricot wafers, she had an equal number of strawberry and apricot wafers. How many apricot wafers did she have at first?
| |
Strawberry wafers |
Apricot wafers |
Total |
| Before |
3 u |
2 u + 20 |
70 |
| Change |
- 1 u |
- 20 |
|
| After |
2 u |
2 u |
|
Fraction of the strawberry wafers left
= 1 -
13=
23 The number of strawberry and apricot wafers in the end is the same.
Total number of wafers at first
= 3 u + 2 u + 20
= 5 u + 20
5 u + 20 = 70
5 u = 70 - 20
5 u = 50
1 u = 50 ÷ 5 = 10
Number of apricot wafers at first
= 2 u + 20
= 2 x 10 + 20
= 20 + 20
= 40
Answer(s): 40
