Tammy made 304 croissants and shortbreads. After she gave 0.3 of the croissants and 0.75 of the shortbreads to her students, she was left with an equal number of croissants and shortbreads. How many shortbreads had she left?
| |
Croissants |
Shortbreads |
Before
|
10x1 =
10 u |
4x7 =
28 u |
Change
|
- 3x1 =
- 3 u |
- 3x7 =
- 21 u |
After
|
7x1 =
7 u |
1x7 =
7 u |
Comparing croissants and
shortbreads in the end |
1x7 =
7 u |
1x7 =
7 u |
0.3 =
310 0.75 =
75100 =
34 The number of croissants and shortbreads is the same in the end. Make the number of croissants and shortbreads in the end the same. LCM of 7 and 1 and 1 is 7.
Total number of croissants and shortbreads at first
= 10 u + 28 u
= 38 u
38 u = 304
1 u = 304 ÷ 38 = 8
Number of shortbreads that Tammy had left
= 7 u
= 7 x 8
= 56
Answer(s): 56
