Vincent has 113 marbles and Howard has 355 marbles. How many marbles must Howard give to Vincent so that Vincent will have 64 less marbles than Howard?
| |
Vincent |
Howard |
Total |
| Before |
113 |
355 |
468 |
| Change |
+ ? |
- ? |
|
| After |
1 u |
1 u + 64 |
468 |
The total number of marbles remains unchanged after Howard gives to Vincent.
Total number of marbles
= 113 + 355
= 468
Total number of marbles in the end
= 1 u + 1 u + 64
= 2 u + 64
2 u + 64 = 468
2 u = 468 - 64
2 u = 404
1 u = 404 ÷ 2 = 202
Number of marbles that Howard must give to Vincent
= 202 - 113
= 89
Answer(s): 89
