Answer:
The least sum they could have is 15 dollars (n=1).
Step-by-step explanation:
Let S and J represent the number of dollars held by Sam and Janet, respectively. Let
.. n = S/13 = J/2
Then
.. S = 13n
.. J = 2n
.. S + J = 13n +2n = 15n > 10 . . . . .
we know that from question, the sum of their amount is more than $10
therefore, The least sum they could have is 15 dollars (n=1).