Oliver had
58 as many erasers as Irene. After Oliver bought another 14 erasers, he had 16 less erasers than Irene. How many erasers did Oliver have at first?
| |
Oliver |
Irene |
| Before |
5 u |
8 u |
| Change |
+ 14 |
|
| After |
5 u + 14 |
8 u |
Irene had 16 more erasers than Oliver in the end. So, if Oliver had another 16 erasers, he would have the same number of erasers as Irene.
8 u = 5 u + 14 + 16
8 u - 5 u = 14 + 16
3 u = 30
1 u = 30 ÷ 3 = 10
Number of erasers that Oliver had at first
= 5 u
= 5 x 10
= 50
Answer: 50
