Jade and Nicole have 220 marbles altogether. Nicole has thrice as many marbles as Jade. How many marbles must Nicole give to Jade so that they have the same number of marbles?
| |
Jade |
Nicole |
Total |
| Before |
1 u |
3 u |
220 |
| Change |
+ ? |
- ? |
|
| After |
110 |
110 |
220 |
Total number of marbles that Jade and Nicole have
= 1 u + 3 u
= 4 u
4 u = 220
1 u = 220 ÷ 4 = 55
Number of marbles that Jade and Nicole each has in the end
= 220 ÷ 2
= 110
Number of marbles that Nicole must give to Jade
= 110 - 55
= 55
Answer(s): 55
