Opal, Winnie and Xandra had a total of 289 cards. Opal gave
13 of her cards away. Xandra gave away 4 times as many cards as Opal and Winnie gave away 81 cards. In the end, they had 133 cards left. How many cards did Winnie and Xandra have in total in the end?
| |
Opal |
Winnie |
Xandra |
Total |
| Before |
3 u |
? |
? |
289 |
| Change |
- 1 u |
- 81 |
- 4 u |
- 156 |
| After |
2 u |
? |
133 |
Number of cards that Xandra gave away
= 4 x 1 u
= 4 u
Number of cards given away
= 1 u + 81 + 4 u
= 5 u + 81
5 u + 81 = 289 - 133
5 u = 156 - 81
5 u = 75
1 u = 75 ÷ 5 = 15
Number of cards that Winnie and Xandra had in the end
= 133 - 2 u
= 133 - 2 x 15
= 133 - 30
= 103
Answer(s): 103
