Zeph has 469 lollipops and Elijah has 533 lollipops. How many lollipops must Elijah give to Zeph so that Zeph will have 42 more lollipops than Elijah?
| |
Zeph |
Elijah |
Total |
| Before |
469 |
533 |
1002 |
| Change |
+ ? |
- ? |
|
| After |
1 u + 42 |
1 u |
1002 |
The total number of lollipops remains unchanged after Elijah gives to Zeph.
Total number of lollipops
= 469 + 533
= 1002
Total number of lollipops in the end
= 1 u + 1 u + 42
= 2 u + 42
2 u + 42 = 1002
2 u = 1002 - 42
2 u = 960
1 u = 960 ÷ 2 = 480
Number of lollipops that Elijah must give to Zeph
= 533 - 480
= 53
Answer(s): 53
