The number of chocolate chip scones Billy baked was
37 of the total number of scones. After baking another 252 chocolate chip scones, the number of chocolate chip scones became
67 of the total number of scones. How many scones did she bake at first?
| |
Chocolate chip scones |
Other scones |
Total scones |
| Before |
3 u |
4 u |
7 u |
| Change |
+ 252 |
|
|
| After |
6x4 =
24 u |
1x4 =
4 u |
7x4 =
28 u |
The number of other scones remains unchanged. Make the number of other scones the same. LCM of 4 and 1 is 4.
Number of more chocolate chip scones baked
= 24 u - 3 u
= 21 u
21 u = 252
1 u = 252 ÷ 21 = 12
Number of scones that Billy baked at first
= 7 u
= 7 x 12
= 84
Answer(s): 84
