Answer:
the system with the larger mass has the greater period
Explanation:
You want to know which system has a greater period if the spring constants are equal and the mass of one system is twice that of the other in spring-mass systems.
The period of such a system is given by ...
T = 2π√(m/k)
For systems with the same value of k, the period is proportional to the square root of the mass. The system with the larger mass will have the greater period.