Robbert climbed 775 steps in 12 1/2 minutes

Answer 1

775/12.5 = 62 steps per minute

just use a calculator or do more time consuming long division

or simplify the fraction:

775/12.5 = 175/2.5 = 31/.5 = 62/1 = 62

divide both numerator and denominator by 5, twice.

if a number ends in 5, it's divisible by 5.

to get 31/.5 Then multiply both numerator & denominator by 2 to get 62/1 which equals 62

62 steps per minute = 62/60 steps per second

62/60 = 31/30 = about 1.03 steps per second. That seems probably realistic.