Vincent has 300 chocolate bars and Ian has 800 chocolate bars. How many chocolate bars must Ian give to Vincent so that Vincent will have four times as many chocolate bars as Ian?
|
Vincent |
Ian |
Total |
Before |
300 |
800 |
1100 |
Change |
+ ? |
- ? |
|
After |
4 u |
1 u |
5 u |
Total number of chocolate bars
= 300 + 800
= 1100
Total number of chocolate bars
= 4 u + 1 u
= 5 u
5 u = 1100
1 u = 1100 ÷ 5 = 220
Number of chocolate bars that Ian must give Vincent
= 800 - 220
= 580
Answer(s): 580