Ben has
34 as many cards as John. They have a total of 266 cards. How many cards must John give to Ben so that they will have the same number of cards?
|
Ben |
John |
Total |
Before |
3 u |
4 u |
7 u |
Change |
+ ? |
- ? |
|
After |
133 |
133 |
266 |
Total number of cards
= 3 u + 4 u
= 7 u
7 u = 266
1 u = 266 ÷ 7 = 38
Number of cards that each of them has in the end
= 266 ÷ 2
= 133
Number of cards that Ben has
= 3 u
= 3 x 38
= 114
Number of cards that John must give Ben
= 133 - 114
= 19
Answer(s): 19