Tiffany and Shannon had the
same number of mochi balls at first. Tiffany gave 20 mochi balls away to her sister. In the end, Shannon had five times as many mochi balls as Tiffany. How many mochi balls did Tiffany have at first?
| |
Tiffany |
Shannon |
| Before |
5 u |
5 u |
| Change |
- 20 |
|
| After |
1 u |
5 u |
The number of mochi balls that Shannon had remains unchanged.
Number of mochi balls that Tiffany gave away
= 5 u - 1 u
= 4 u
4 u = 20
1 u = 20 ÷ 4 = 5
Number of mochi balls that Tiffany had at first
= 5 u
= 5 x 5
= 25
Answer(s): 25
