Olivia has 3 times as many beads as Tiffany. Tiffany has
45 as many beads as Jaslyn. If the three of them have a total of 42 beads, how many beads does Olivia have?
| Olivia |
Tiffany |
Jaslyn |
| 3x4 |
1x4 |
|
| |
4x1 |
5x1 |
| 12 u |
4 u |
5 u |
The number of beads that Tiffany has is repeated. Make the number of beads that Tiffany has the same. LCM of 1 and 4 is 4.
Total number of beads that the three of them have
= 12 u + 4 u + 5 u
= 21 u
21 u = 42
1 u = 42 ÷ 21 = 2
Number of beads that Olivia has
= 12 u
= 12 x 2
= 24
Answer(s): 24
