Gabriel has
310 as many marbles as Caden. They have a total of 260 marbles. How many marbles must Caden give to Gabriel so that they will have the same number of marbles?
|
Gabriel |
Caden |
Total |
Before |
3 u |
10 u |
13 u |
Change |
+ ? |
- ? |
|
After |
130 |
130 |
260 |
Total number of marbles
= 3 u + 10 u
= 13 u
13 u = 260
1 u = 260 ÷ 13 = 20
Number of marbles that each of them has in the end
= 260 ÷ 2
= 130
Number of marbles that Gabriel has
= 3 u
= 3 x 20
= 60
Number of marbles that Caden must give Gabriel
= 130 - 60
= 70
Answer(s): 70