the fewest number of people surveyed is 125, i’ll explain why.
the percentage of people that finished the survey is 93.6%, given.
this percentage as a fraction is p, (being the people) = 93.6/100, so, p = 93.6/100.
you then multiple the fraction 93.6/100 by 10, which is: p = 936/1000. then, reduce the fraction.
p = 117/125.
the fraction can’t be reduced any further, so that’s your answer.
hope this helps!