Zane had
38 the number of beads that Jeremy had at first. After Jeremy gave Zane 36 of his beads, Zane had
34 the number of beads that Jeremy had. How many beads did Zane have at first?
|
Zane |
Jeremy |
Total |
Before |
3x7 = 21 u |
8x7 = 56 u |
11x7 = 77 u |
Change |
+ 12 u |
- 12 u |
|
After |
3x11 = 33 u |
4x11 = 44 u |
7x11 = 77 u |
The total number of beads that Zane and Jeremy had at first and in the end remains unchanged. Make the total number of beads the same. LCM of 11 and 7 is 77.
Number of beads that Jeremy gave Zane
= 33 u - 21 u
= 12 u
12 u = 36
1 u = 36 ÷ 12 = 3
Number of beads that Zane had at first
= 21 u
= 21 x 3
= 63
Answer(s): 63