Tim has 14 bookmarks more than Sarah. How many bookmarks must Sarah get from Tim so that she has 30 bookmarks more than him?
| |
Tim |
Sarah |
Comparing Tim
and Sarah
at first |
14 more |
|
| Before |
|
|
| Change |
- ? |
+ ? |
| After |
|
|
Comparing Tim
and Sarah
in the end |
|
30 more |
If Tim gives 14 bookmarks to Sarah, she will have 14 more bookmarks than him. However, Sarah must have 30 more bookmarks than Tim in the end. So, Tim has to give Sarah more bookmarks.
Number of more bookmarks that Tim has to give to Sarah
= (30 - 14) ÷ 2
= 16 ÷ 2
= 8
So after giving 14 bookmarks to Sarah, Tim has to give her another 8 more bookmarks so that she has 30 bookmarks more than him.
Total number of bookmarks that Sarah needs to get from Tim
= 14 + 8
= 22
Answer(s): 22
