Answer:
a) 5/6 hours
b) 50 minutes
Explanation:
Given that she hiked up the mountain in 1 and2/3 hours. Which is the same as 5/3
She hiked down 1/2 the time of hiking up. That is
1/2 × 5/3 = 5/6 hours
How long in minutes did it take her
5/6 × 60 = 5 × 10 = 50 minutes