Xavier has 232 marbles and Reggie has 410 marbles. How many marbles must Reggie give to Xavier so that Xavier will have 94 less marbles than Reggie?
|
Xavier |
Reggie |
Total |
Before |
232 |
410 |
642 |
Change |
+ ? |
- ? |
|
After |
1 u |
1 u + 94 |
642 |
The total number of marbles remains unchanged after Reggie gives to Xavier.
Total number of marbles
= 232 + 410
= 642
Total number of marbles in the end
= 1 u + 1 u + 94
= 2 u + 94
2 u + 94 = 642
2 u = 642 - 94
2 u = 548
1 u = 548 ÷ 2 = 274
Number of marbles that Reggie must give to Xavier
= 274 - 232
= 42
Answer(s): 42