Glen has 485 chocolate bars and Sean has 664 chocolate bars. How many chocolate bars must Sean give to Glen so that Glen will have 59 more chocolate bars than Sean?
| |
Glen |
Sean |
Total |
| Before |
485 |
664 |
1149 |
| Change |
+ ? |
- ? |
|
| After |
1 u + 59 |
1 u |
1149 |
The total number of chocolate bars remains unchanged after Sean gives to Glen.
Total number of chocolate bars
= 485 + 664
= 1149
Total number of chocolate bars in the end
= 1 u + 1 u + 59
= 2 u + 59
2 u + 59 = 1149
2 u = 1149 - 59
2 u = 1090
1 u = 1090 ÷ 2 = 545
Number of chocolate bars that Sean must give to Glen
= 664 - 545
= 119
Answer(s): 119
