Ivory made 198 croissants and muffins. After she gave 0.7 of the croissants and 0.75 of the muffins to her boys, she was left with an equal number of croissants and muffins. How many muffins had she left?
| |
Croissants |
Muffins |
Before
|
10x1 =
10 u |
4x3 =
12 u |
Change
|
- 7x1 =
- 7 u |
- 3x3 =
- 9 u |
After
|
3x1 =
3 u |
1x3 =
3 u |
Comparing croissants and
muffins in the end |
1x3 =
3 u |
1x3 =
3 u |
0.7 =
710 0.75 =
75100 =
34 The number of croissants and muffins is the same in the end. Make the number of croissants and muffins in the end the same. LCM of 3 and 1 and 1 is 3.
Total number of croissants and muffins at first
= 10 u + 12 u
= 22 u
22 u = 198
1 u = 198 ÷ 22 = 9
Number of muffins that Ivory had left
= 3 u
= 3 x 9
= 27
Answer(s): 27
