Ethan had
29 as many erasers as Gem. After Ethan gave away 53 erasers, he had 74 less erasers than Gem. How many erasers did Gem have?
| |
Ethan |
Gem |
| Before |
2 u |
9 u |
| Change |
- 53 |
|
| After |
2 u - 53 |
9 u |
Gem had 74 more erasers than Ethan in the end. So, if Ethan had another 74 erasers, he would have the same number of erasers as Gem.
9 u = 2 u - 53 + 74
9 u - 2 u = 74 - 53
7 u = 21
1 u = 21 ÷ 7 = 3
Number of erasers that Gem had at first
= 9 u
= 9 x 3
= 27
Answer: 27
