Neave had 264 more erasers than Ben at first. Then Neave bought 60 more erasers. In the end, Neave has 4 times as many erasers as Ben.
- How many erasers did Ben have?
- Find the total number of erasers Neave and Ben had in the end?
| |
Neave |
Ben |
Total |
| Before |
1 u + 264 |
1 u |
|
| Change |
+ 60 |
|
|
| After |
1 u + 264 + 60 |
1 u |
5 u |
(a)
Before
Number of erasers that Neave had = 1 u + 264
Number of erasers that Ben had = 1 u
After
Number of erasers that Neave had = 1 u + 264 + 60 = 4 u
Number of erasers that Ben had = 1 u
1 u + 264 + 60 = 4u
1 u + 324 = 4 u
4 u - 1 u = 324
3 u = 324
1 u = 324 ÷ 3 = 108
(a)
Number of erasers that Ben had
= 1 u
= 108
(b)
Number of erasers that Neave and Ben had in the end
= 4 u + 1 u
= 5 u
= 5 x 108
= 540
Answer(s): (a) 108; (b) 540
