Tom and Cody have a total of 70 cards. If Tom gives Cody 19 cards, Cody will have 4 times as many cards as him. Find
(a) Tom's cards
(b) Cody's cards
|
Tom |
Cody |
Total |
Before |
1 u + 19 |
4 u - 19 |
70 |
Change |
- 19 |
+ 19 |
|
After |
1 u |
4 u |
5 u |
(a)
Total number of cards
= 1 u + 4 u
= 5 u
5 u = 70
1 u = 70 ÷ 5 = 14
Number of cards that Tom has
= 1 u + 19
= 14 + 19
= 33
(b)
Number of cards that Cody has
= 70 - 33
= 37
Answer(s): (a) 33; (b) 37