Howard had 331 more stamps than Ahmad at first. Then Howard bought 41 more stamps. In the end, Howard has 4 times as many stamps as Ahmad.
- How many stamps did Ahmad have?
- Find the total number of stamps Howard and Ahmad had in the end?
| |
Howard |
Ahmad |
Total |
| Before |
1 u + 331 |
1 u |
|
| Change |
+ 41 |
|
|
| After |
1 u + 331 + 41 |
1 u |
5 u |
(a)
Before
Number of stamps that Howard had = 1 u + 331
Number of stamps that Ahmad had = 1 u
After
Number of stamps that Howard had = 1 u + 331 + 41 = 4 u
Number of stamps that Ahmad had = 1 u
1 u + 331 + 41 = 4u
1 u + 372 = 4 u
4 u - 1 u = 372
3 u = 372
1 u = 372 ÷ 3 = 124
(a)
Number of stamps that Ahmad had
= 1 u
= 124
(b)
Number of stamps that Howard and Ahmad had in the end
= 4 u + 1 u
= 5 u
= 5 x 124
= 620
Answer(s): (a) 124; (b) 620
