Cody and Seth have a total of 64 marbles. If Cody gives Seth 33 marbles, Seth will have 3 times as many marbles as him. Find
(a) Cody's marbles
(b) Seth's marbles
|
Cody |
Seth |
Total |
Before |
1 u + 33 |
3 u - 33 |
64 |
Change |
- 33 |
+ 33 |
|
After |
1 u |
3 u |
4 u |
(a)
Total number of marbles
= 1 u + 3 u
= 4 u
4 u = 64
1 u = 64 ÷ 4 = 16
Number of marbles that Cody has
= 1 u + 33
= 16 + 33
= 49
(b)
Number of marbles that Seth has
= 64 - 49
= 15
Answer(s): (a) 49; (b) 15