Emily made 552 cupcakes and muffins. After she gave 0.1 of the cupcakes and 0.75 of the muffins to her pupils, she was left with an equal number of cupcakes and muffins. How many muffins had she left?
| |
Cupcakes |
Muffins |
Before
|
10x1 =
10 u |
4x9 =
36 u |
Change
|
- 1x1 =
- 1 u |
- 3x9 =
- 27 u |
After
|
9x1 =
9 u |
1x9 =
9 u |
Comparing cupcakes and
muffins in the end |
1x9 =
9 u |
1x9 =
9 u |
0.1 =
110 0.75 =
75100 =
34 The number of cupcakes and muffins is the same in the end. Make the number of cupcakes and muffins in the end the same. LCM of 9 and 1 and 1 is 9.
Total number of cupcakes and muffins at first
= 10 u + 36 u
= 46 u
46 u = 552
1 u = 552 ÷ 46 = 12
Number of muffins that Emily had left
= 9 u
= 9 x 12
= 108
Answer(s): 108
