Jane has 4 times as many stickers as Sarah. Sarah has
23 as many stickers as Cathy. If the three of them have a total of 117 stickers, how many stickers does Cathy have?
Jane |
Sarah |
Cathy |
4x2 |
1x2 |
|
|
2x1 |
3x1 |
8 u |
2 u |
3 u |
The number of stickers that Sarah has is repeated. Make the number of stickers that Sarah has the same. LCM of 1 and 2 is 2.
Total number of stickers that the three of them have
= 8 u + 2 u + 3 u
= 13 u
13 u = 117
1 u = 117 ÷ 13 = 9
Number of stickers that Cathy has
= 3 u
= 3 x 9
= 27
Answer(s): 27