Julie made 242 wafers and muffins. After she gave 0.7 of the wafers and 0.75 of the muffins to her children, she was left with an equal number of wafers and muffins. How many muffins had she left?
| |
Wafers |
Muffins |
Before
|
10x1 =
10 u |
4x3 =
12 u |
Change
|
- 7x1 =
- 7 u |
- 3x3 =
- 9 u |
After
|
3x1 =
3 u |
1x3 =
3 u |
Comparing wafers and
muffins in the end |
1x3 =
3 u |
1x3 =
3 u |
0.7 =
710 0.75 =
75100 =
34 The number of wafers and muffins is the same in the end. Make the number of wafers and muffins in the end the same. LCM of 3 and 1 and 1 is 3.
Total number of wafers and muffins at first
= 10 u + 12 u
= 22 u
22 u = 242
1 u = 242 ÷ 22 = 11
Number of muffins that Julie had left
= 3 u
= 3 x 11
= 33
Answer(s): 33
