Last Monday, Luis had twice as many beads as Zane. Today, Luis gives 10 of his beads to his buddy. Now, Zane has thrice as many beads as Luis. How many beads does Zane have?
| |
Luis |
Zane |
| Before |
2x3 =
6 u |
1x3 =
3 u |
| Change |
- 10 |
|
| After |
1 u |
3 u |
The number of beads that Zane had at first and in the end remains unchanged. Make the number of beads that Zane has the same. LCM of 1 and 3 is 3.
Number of beads that Luis gives to his buddy
= 6 u - 1 u
= 5 u
5 u = 10
1 u = 10 ÷ 5 = 2
Number of beads that Zane has
= 3 u
= 3 x 2
= 6
Answer(s): 6
