Lucy and Gem shared a box of erasers. Lucy had 81% of the total erasers. if Lucy gave 217 of her erasers to Gem, both would have the same number of erasers. How many erasers did Gem have?
| |
Lucy |
Gem |
Total |
| Before |
81% |
19% |
100% |
| Change |
- 31% |
+ 31% |
|
| After |
50% |
50% |
100% |
Total number of erasers that Lucy and Gem shared = 100%
If Lucy gave 217 erasers to Gem, both would have the same number of erasers.
Number of erasers that each would have in the end
= 100% ÷ 2
= 50%
Number of erasers that Lucy gave to Gem
= 81% - 50%
= 31%
31% → 217
1% → 217 ÷ 31 = 7
Number of erasers that Gem had
= 19%
= 19 x 7
= 133
Answer(s): 133
