Charlie has
35 as many marbles as Ben. They have a total of 288 marbles. How many marbles must Ben give to Charlie so that they will have the same number of marbles?
|
Charlie |
Ben |
Total |
Before |
3 u |
5 u |
8 u |
Change |
+ ? |
- ? |
|
After |
144 |
144 |
288 |
Total number of marbles
= 3 u + 5 u
= 8 u
8 u = 288
1 u = 288 ÷ 8 = 36
Number of marbles that each of them has in the end
= 288 ÷ 2
= 144
Number of marbles that Charlie has
= 3 u
= 3 x 36
= 108
Number of marbles that Ben must give Charlie
= 144 - 108
= 36
Answer(s): 36