The number of vanilla puffs Julian baked was
37 of the total number of puffs. After baking another 210 vanilla puffs, the number of vanilla puffs became
67 of the total number of puffs. How many puffs did she bake at first?
| |
Vanilla puffs |
Other puffs |
Total puffs |
| Before |
3 u |
4 u |
7 u |
| Change |
+ 210 |
|
|
| After |
6x4 =
24 u |
1x4 =
4 u |
7x4 =
28 u |
The number of other puffs remains unchanged. Make the number of other puffs the same. LCM of 4 and 1 is 4.
Number of more vanilla puffs baked
= 24 u - 3 u
= 21 u
21 u = 210
1 u = 210 ÷ 21 = 10
Number of puffs that Julian baked at first
= 7 u
= 7 x 10
= 70
Answer(s): 70
