Tiffany, Min and Cathy had a total of 293 stickers. Tiffany gave
35 of her stickers away. Cathy gave away 3 times as many stickers as Tiffany and Min gave away 77 stickers. In the end, they had 108 stickers left. How many stickers did Min and Cathy have in total in the end?
| |
Tiffany |
Min |
Cathy |
Total |
| Before |
5 u |
? |
? |
293 |
| Change |
- 3 u |
- 77 |
- 9 u |
- 185 |
| After |
2 u |
? |
108 |
Number of stickers that Cathy gave away
= 3 x 3 u
= 9 u
Number of stickers given away
= 3 u + 77 + 9 u
= 12 u + 77
12 u + 77 = 293 - 108
12 u = 185 - 77
12 u = 108
1 u = 108 ÷ 12 = 9
Number of stickers that Min and Cathy had in the end
= 108 - 2 u
= 108 - 2 x 9
= 108 - 18
= 90
Answer(s): 90
