Seth has
29 as many stamps as Fred. They have a total of 286 stamps. How many stamps must Fred give to Seth so that they will have the same number of stamps?
|
Seth |
Fred |
Total |
Before |
2 u |
9 u |
11 u |
Change |
+ ? |
- ? |
|
After |
143 |
143 |
286 |
Total number of stamps
= 2 u + 9 u
= 11 u
11 u = 286
1 u = 286 ÷ 11 = 26
Number of stamps that each of them has in the end
= 286 ÷ 2
= 143
Number of stamps that Seth has
= 2 u
= 2 x 26
= 52
Number of stamps that Fred must give Seth
= 143 - 52
= 91
Answer(s): 91