Last Monday, Warren had twice as many marbles as Vincent. Today, Warren gives 55 of his marbles to his sister. Now, Vincent has thrice as many marbles as Warren. How many marbles does Vincent have?
| |
Warren |
Vincent |
| Before |
2x3 =
6 u |
1x3 =
3 u |
| Change |
- 55 |
|
| After |
1 u |
3 u |
The number of marbles that Vincent had at first and in the end remains unchanged. Make the number of marbles that Vincent has the same. LCM of 1 and 3 is 3.
Number of marbles that Warren gives to his sister
= 6 u - 1 u
= 5 u
5 u = 55
1 u = 55 ÷ 5 = 11
Number of marbles that Vincent has
= 3 u
= 3 x 11
= 33
Answer(s): 33
