Olivia and Yen have 600 stickers altogether. Yen has four times as many stickers as Olivia. How many stickers must Yen give to Olivia so that they have the same number of stickers?
| |
Olivia |
Yen |
Total |
| Before |
1 u |
4 u |
600 |
| Change |
+ ? |
- ? |
|
| After |
300 |
300 |
600 |
Total number of stickers that Olivia and Yen have
= 1 u + 4 u
= 5 u
5 u = 600
1 u = 600 ÷ 5 = 120
Number of stickers that Olivia and Yen each has in the end
= 600 ÷ 2
= 300
Number of stickers that Yen must give to Olivia
= 300 - 120
= 180
Answer(s): 180
