Answer: For calculate the time period we should be given length of bothe pendulums. But Here they have not given it. There is an error of the qutetion
Step-by-step explanation
Time period of the simple pendulum can be denoted as T = 2*pi root (l/g) l is the length of the pendulum and g is the gravitational acceleration.
But we can suggest which pendulum has a higher time period considering theri inertia.