Usha and Fiona had an equal number of stickers at first. Usha used
12 of her stickers and Fiona used
16 of her stickers. They used 16 stickers altogether. How many stickers did Fiona have in the end?
| |
Usha |
Fiona |
| Before |
2x3 =
6 u |
6x1 =
6 u |
| Change |
- 1x3 =
- 3 u |
- 1x1 =
- 1 u |
| After |
1x3 =
3 u |
5x1 =
5 u |
The number of stickers that Usha and Fiona each had at first is the same. Make the number of stickers that Usha and Fiona each had at first the same. LCM of 2 and 6 is 6.
Number of stickers that Usha and Fiona used
= 3 u + 1 u
= 4 u
4 u = 16
1 u = 16 ÷ 4 = 4
Number of stickers that Fiona had in the end
= 5 u
= 5 x 4
= 20
Answer(s): 20
