Answer:
1/4=25 minutes an hour
25×2=50
it will take him 50 minutes
To figure this equation out, you'll have to divide 39 by 52% (0,52)
39 / 0.52 = 75
39 is 52% of 75 is your answer.
Hope this helps!
Recall to always convert the mixed fractions to "improper" fractions first,
Fractions that have the same number on the bottom have a "common denominator."