The bob of a pendulum makes 100 oscillations in 25 s econds. What is the time period of the given pendulum?

Pendulum makes 100 oscillations in 25 s

Pendulum makes 1 oscillations in 25/100 = 0.25s

Time period (T) is defined as the time taken to make one oscillation, thus that is equal to 0.25s

or T = 0.25s