Yen, Kimberly and Yoko had a total of 220 erasers. Yen gave
37 of her erasers away. Yoko gave away 2 times as many erasers as Yen and Kimberly gave away 26 erasers. In the end, they had 104 erasers left. How many erasers did Kimberly and Yoko have in total in the end?
|
Yen |
Kimberly |
Yoko |
Total |
Before |
7 u |
? |
? |
220 |
Change |
- 3 u |
- 26 |
- 6 u |
- 116 |
After |
4 u |
? |
104 |
Number of erasers that Yoko gave away
= 2 x 3 u
= 6 u
Number of erasers given away
= 3 u + 26 + 6 u
= 9 u + 26
9 u + 26 = 220 - 104
9 u = 116 - 26
9 u = 90
1 u = 90 ÷ 9 = 10
Number of erasers that Kimberly and Yoko had in the end
= 104 - 4 u
= 104 - 4 x 10
= 104 - 40
= 64
Answer(s): 64