Basic Fitness Test Clarification (reps in 60″)

In the Basic Fitness Test in Ch. 6 in Training for the new Alpinism, the tests are like “Number of X in 60” ” so the question is:

Is it valid if e.g. i do 10reps of pushups in e.g. 35″ then take 10″ rest and take another 5reps in the remains 15″ (60″ in total) or start doing my reps and when i stop then it’s done?

I understand the first but I’d like a confirmation.

Thanks a priori