Albert, Charlie and Sean had a total of 541 stamps at first. After a week, the number of Albert's stamps became 5 times the number of stamps he had at first. The number of Charlie's stamps decreased by 125. Sean had one-quarter as many stamps as he had at first. In the end, the three boys had the same number of stamps.
- How many stamps did Sean have at first?
- What was the total number of stamps that the three boys had in the end?
|
Albert |
Charlie |
Sean |
Total |
Before |
1 u |
5 u + 125 |
20 u |
|
Change |
x 5 |
- 125 |
x 14 |
|
After |
5 u |
5 u |
5 u |
15 u |
(a)
Total number of stamps at first
=
1 u + 5 u + 125 + 20 u
= 26 u + 125
26 u + 125 = 54126 u = 541 - 12526 u = 416
1 u = 416 ÷ 26 = 16 Number of stamps that Sean had at first
= 5 u ÷
14= 5 u x
41= 20 u = 20 x 16 = 320(b)Total number of stamps that the three boys had at the end = 15 u = 15 x 16 = 240 Answer(s): (a) 320; (b) 240