The number of chocolate chip macarons Nick baked was
45 of the total number of macarons. After baking another 18 chocolate chip macarons, the number of chocolate chip macarons became
67 of the total number of macarons. How many macarons did she bake at first?
| |
Chocolate chip macarons |
Other macarons |
Total macarons |
| Before |
4 u |
1 u |
5 u |
| Change |
+ 18 |
|
|
| After |
6x1 =
6 u |
1x1 =
1 u |
7x1 =
7 u |
The number of other macarons remains unchanged. Make the number of other macarons the same. LCM of 1 and 1 is 1.
Number of more chocolate chip macarons baked
= 6 u - 4 u
= 2 u
2 u = 18
1 u = 18 ÷ 2 = 9
Number of macarons that Nick baked at first
= 5 u
= 5 x 9
= 45
Answer(s): 45
