Neave and Glen had 48 staplers together. Glen had 8 less staplers than Neave. Both of them sold some of their staplers. Glen sold 25% more staplers than what Neave sold. In the end, Glen had half as many staplers left as Neave. How many staplers had Glen left?
| |
Neave
(1) |
Glen
(2) |
Make p the same
(2)x2 = (3) |
Comparing Neave
and Glen at first |
8 more |
|
|
| Before |
28 |
20 |
40 |
| Change |
- 4 u |
- 5 u |
- 10 u |
| After |
2 p |
1 p |
2 p |
Number of staplers that Glen had at first
= (48 - 8) ÷ 2
= 40 ÷ 2
= 20
Number of staplers that Neave had at first
= 20 + 8
= 28
Number of staplers that Glen sold in percent
= 100% + 25%
= 125%
125% =
125100 =
54 Make p the same.
(1) = (3)
28 - 4 u = 40 - 10 u
10 u - 4 u = 40 - 28
6 u = 12
1 u = 12 ÷ 6 = 2
Number of staplers that Glen had left
= 20 - 5 u
= 20 - 5 x 2
= 20 - 10
= 10
Answer(s): 10
