The number of apricot puffs Japheth baked was
57 of the total number of puffs. After baking another 20 apricot puffs, the number of apricot puffs became
56 of the total number of puffs. How many puffs did she bake at first?
| |
Apricot puffs |
Other puffs |
Total puffs |
| Before |
5 u |
2 u |
7 u |
| Change |
+ 20 |
|
|
| After |
5x2 =
10 u |
1x2 =
2 u |
6x2 =
12 u |
The number of other puffs remains unchanged. Make the number of other puffs the same. LCM of 2 and 1 is 2.
Number of more apricot puffs baked
= 10 u - 5 u
= 5 u
5 u = 20
1 u = 20 ÷ 5 = 4
Number of puffs that Japheth baked at first
= 7 u
= 7 x 4
= 28
Answer(s): 28
