Victoria and Xandra have 816 marbles altogether. Xandra has five times as many marbles as Victoria. How many marbles must Xandra give to Victoria so that they have the same number of marbles?
| |
Victoria |
Xandra |
Total |
| Before |
1 u |
5 u |
816 |
| Change |
+ ? |
- ? |
|
| After |
408 |
408 |
816 |
Total number of marbles that Victoria and Xandra have
= 1 u + 5 u
= 6 u
6 u = 816
1 u = 816 ÷ 6 = 136
Number of marbles that Victoria and Xandra each has in the end
= 816 ÷ 2
= 408
Number of marbles that Xandra must give to Victoria
= 408 - 136
= 272
Answer(s): 272
