A total of 80 men and women took part in a race. The cumulative frequency graph gives information about the times, in minutes, they took for the race. $$\(60 \%\)$$ of the men took 50 minutes or less for the race. No women took 50 minutes or less for the race. (b) Work out an estimate for the number of men who took part in the race. (3)

Answer:

Knowledge points:

Solution: