Justin had
710 as many erasers as Nora. After Justin gave away 46 erasers, he had 88 less erasers than Nora. How many erasers did Nora have?
| |
Justin |
Nora |
| Before |
7 u |
10 u |
| Change |
- 46 |
|
| After |
7 u - 46 |
10 u |
Nora had 88 more erasers than Justin in the end. So, if Justin had another 88 erasers, he would have the same number of erasers as Nora.
10 u = 7 u - 46 + 88
10 u - 7 u = 88 - 46
3 u = 42
1 u = 42 ÷ 3 = 14
Number of erasers that Nora had at first
= 10 u
= 10 x 14
= 140
Answer: 140
