Julie, Anna, Michael and Barbara shared some stamps. Julie and Anna took
15 of the total number of stamps while Michael and Barbara took the rest. Anna had twice as many stamps as Julie and Barbara had 48 stamps. Given that Barbara had thrice as many stamps as Anna, how many stamps were there altogether?
| Julie |
Anna |
Michael |
Barbara |
Total |
| 1x3 |
4x3 |
5x3 |
| 1 |
2 |
|
|
|
| |
1x2 |
|
3x2 |
|
| 1 u |
2 u |
6 u |
6 u |
15 u |
Number of stamps that Anna had is repeated. Make the number of stamps that Anna had the same. LCM of 2 and 1 is 2.
Number of stamps that Barbara had = 6 u
6 u = 48
1 u = 48 ÷ 6 = 8
Total number of stamps
= 15 u
= 15 x 8
= 120
Answer(s): 120
