Yoko, Betty and Zoe had a total of 205 stickers. Yoko gave
59 of her stickers away. Zoe gave away 2 times as many stickers as Yoko and Betty gave away 37 stickers. In the end, they had 138 stickers left. How many stickers did Betty and Zoe have in total in the end?
| |
Yoko |
Betty |
Zoe |
Total |
| Before |
9 u |
? |
? |
205 |
| Change |
- 5 u |
- 37 |
- 10 u |
- 67 |
| After |
4 u |
? |
138 |
Number of stickers that Zoe gave away
= 2 x 5 u
= 10 u
Number of stickers given away
= 5 u + 37 + 10 u
= 15 u + 37
15 u + 37 = 205 - 138
15 u = 67 - 37
15 u = 30
1 u = 30 ÷ 15 = 2
Number of stickers that Betty and Zoe had in the end
= 138 - 4 u
= 138 - 4 x 2
= 138 - 8
= 130
Answer(s): 130
