Julie, Opal and Zoe had a total of 449 pens. Julie gave
27 of her pens away. Zoe gave away 5 times as many pens as Julie and Opal gave away 31 pens. In the end, they had 190 pens left. How many pens did Opal and Zoe have in total in the end?
|
Julie |
Opal |
Zoe |
Total |
Before |
7 u |
? |
? |
449 |
Change |
- 2 u |
- 31 |
- 10 u |
- 259 |
After |
5 u |
? |
190 |
Number of pens that Zoe gave away
= 5 x 2 u
= 10 u
Number of pens given away
= 2 u + 31 + 10 u
= 12 u + 31
12 u + 31 = 449 - 190
12 u = 259 - 31
12 u = 228
1 u = 228 ÷ 12 = 19
Number of pens that Opal and Zoe had in the end
= 190 - 5 u
= 190 - 5 x 19
= 190 - 95
= 95
Answer(s): 95