Emily, Cathy, Sam and Irene shared some stamps. Emily and Cathy took
14 of the total number of stamps while Sam and Irene took the rest. Cathy had twice as many stamps as Emily and Irene had 24 stamps. Given that Irene had thrice as many stamps as Cathy, how many stamps were there altogether?
Emily |
Cathy |
Sam |
Irene |
Total |
1x3 |
3x3 |
4x3 |
1 |
2 |
|
|
|
|
1x2 |
|
3x2 |
|
1 u |
2 u |
3 u |
6 u |
12 u |
Number of stamps that Cathy had is repeated. Make the number of stamps that Cathy had the same. LCM of 2 and 1 is 2.
Number of stamps that Irene had = 6 u
6 u = 24
1 u = 24 ÷ 6 = 4
Total number of stamps
= 12 u
= 12 x 4
= 48
Answer(s): 48