Mrs Seth baked
12 as many cranberry shortbreads as blueberry shortbreads. She also baked
23 as many cranberry shortbreads as banana shortbreads. If she baked a total of 117 shortbreads, how many cranberry shortbreads did she bake?
Cranberry |
Blueberry |
Banana |
1x2 |
2x2 |
|
2x1 |
|
3x1 |
2 u |
4 u |
3 u |
The number of cranberry shortbreads is the repeated identity. Make the number of cranberry shortbreads the same. LCM of 1 and 2 is 2.
Total number of shortbreads
= 2 u + 4 u + 3 u
= 9 u
9 u = 117
1 u = 117 ÷ 9 = 13
Number of cranberry shortbreads
= 2 u
= 2 x 13
= 26
Answer(s): 26