Min had 70 cherry and banana macarons. After giving away
18 of her cherry macarons and 10 of her banana macarons, she had an equal number of cherry and banana macarons. How many banana macarons did she have at first?
| |
Cherry macarons |
Banana macarons |
Total |
| Before |
8 u |
7 u + 10 |
70 |
| Change |
- 1 u |
- 10 |
|
| After |
7 u |
7 u |
|
Fraction of the cherry macarons left
= 1 -
18=
78 The number of cherry and banana macarons in the end is the same.
Total number of macarons at first
= 8 u + 7 u + 10
= 15 u + 10
15 u + 10 = 70
15 u = 70 - 10
15 u = 60
1 u = 60 ÷ 15 = 4
Number of banana macarons at first
= 7 u + 10
= 7 x 4 + 10
= 28 + 10
= 38
Answer(s): 38
