Dylan and John had a total of 42 beads. John had half as many beads as Dylan. How many beads must Dylan give to John so they have an equal number of beads?
| |
Dylan |
John |
Total |
| Before |
2 u |
1 u |
42 |
| Change |
- ? |
+ ? |
|
| After |
1 |
1 |
|
Total number of beads at first = 3 u
1 u = 42 ÷ 3 = 14
Dylan and John have an equal number of beads in the end.
Number of beads that John has in the end
= 42 ÷ 2
= 21
Number of beads that Dylan must give to John
= 21 - 14
= 7
Answer(s): 7
