Min, Usha, Riordan and Tammy shared some stamps. Min and Usha took
15 of the total number of stamps while Riordan and Tammy took the rest. Usha had thrice as many stamps as Min and Tammy had 54 stamps. Given that Tammy had thrice as many stamps as Usha, how many stamps were there altogether?
Min |
Usha |
Riordan |
Tammy |
Total |
1x4 |
4x4 |
5x4 |
1 |
3 |
|
|
|
|
1x3 |
|
3x3 |
|
1 u |
3 u |
7 u |
9 u |
20 u |
Number of stamps that Usha had is repeated. Make the number of stamps that Usha had the same. LCM of 3 and 1 is 3.
Number of stamps that Tammy had = 9 u
9 u = 54
1 u = 54 ÷ 9 = 6
Total number of stamps
= 20 u
= 20 x 6
= 120
Answer(s): 120