The number of cheese muffins Ryan baked was
37 of the total number of muffins. After baking another 126 cheese muffins, the number of cheese muffins became
67 of the total number of muffins. How many muffins did she bake at first?
| |
Cheese muffins |
Other muffins |
Total muffins |
| Before |
3 u |
4 u |
7 u |
| Change |
+ 126 |
|
|
| After |
6x4 =
24 u |
1x4 =
4 u |
7x4 =
28 u |
The number of other muffins remains unchanged. Make the number of other muffins the same. LCM of 4 and 1 is 4.
Number of more cheese muffins baked
= 24 u - 3 u
= 21 u
21 u = 126
1 u = 126 ÷ 21 = 6
Number of muffins that Ryan baked at first
= 7 u
= 7 x 6
= 42
Answer(s): 42
