Ben and John had a total of 138 beads. John had half as many beads as Ben. How many beads must Ben give to John so they have an equal number of beads?
| |
Ben |
John |
Total |
| Before |
2 u |
1 u |
138 |
| Change |
- ? |
+ ? |
|
| After |
1 |
1 |
|
Total number of beads at first = 3 u
1 u = 138 ÷ 3 = 46
Ben and John have an equal number of beads in the end.
Number of beads that John has in the end
= 138 ÷ 2
= 69
Number of beads that Ben must give to John
= 69 - 46
= 23
Answer(s): 23
