Howard, Andy and Julian had a total of 353 stamps at first. After a week, the number of Howard's stamps became 4 times the number of stamps he had at first. The number of Andy's stamps decreased by 143. Julian 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 Julian have at first?
- What was the total number of stamps that the three boys had in the end?
|
Howard |
Andy |
Julian |
Total |
Before |
1 u |
4 u + 143 |
16 u |
|
Change |
x 4 |
- 143 |
x 14 |
|
After |
4 u |
4 u |
4 u |
12 u |
(a)
Total number of stamps at first
=
1 u + 4 u + 143 + 16 u
= 21 u + 143
21 u + 143 = 35321 u = 353 - 14321 u = 210
1 u = 210 ÷ 21 = 10 Number of stamps that Julian had at first
= 4 u ÷
14= 4 u x
41= 16 u = 16 x 10 = 160(b)Total number of stamps that the three boys had at the end = 12 u = 12 x 10 = 120 Answer(s): (a) 160; (b) 120