Yesterday, Gabriel had 12 more marbles than Warren. Today, Gabriel gave Warren
59 of his marbles. As a result, he has half as many marbles as Warren now. How many marbles did Gabriel have yesterday?
| |
Gabriel |
Warren |
More |
| Before |
9 u |
3 u |
6 u |
| Change |
- 5 u |
+ 5 u |
|
| After |
4 u |
8 u |
|
Comparing Gabriel and
Warren in the end |
1
|
2
|
|
Number of marbles that Warren has now
= 2 x 4 u
= 8 u
Number of marbles that Gabriel had more than Warren yesterday
= 9 u - 3 u
= 6 u
6 u = 12
1 u = 12 ÷ 6 = 2
Number of marbles that Gabriel had yesterday
= 9 u
= 9 x 2
= 18
Answer(s): 18
