Dana and Usha shared a box of erasers. Dana had 75% of the total erasers. if Dana gave 175 of her erasers to Usha, both would have the same number of erasers. How many erasers did Usha have?
| |
Dana |
Usha |
Total |
| Before |
75% |
25% |
100% |
| Change |
- 25% |
+ 25% |
|
| After |
50% |
50% |
100% |
Total number of erasers that Dana and Usha shared = 100%
If Dana gave 175 erasers to Usha, 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 Dana gave to Usha
= 75% - 50%
= 25%
25% → 175
1% → 175 ÷ 25 = 7
Number of erasers that Usha had
= 25%
= 25 x 7
= 175
Answer(s): 175
