Question

LaTanya will walk (3 mi/hr) her bike from her house to the

bike shop, which is 1.5 mi from her house, to get the bike

fixed. She expects to wait 30 min for the repair. Then she

will ride (10 mi/hr) her bike home. How long will it take

her to get home?


A)2.12 hr

B)2hr

C)1.15

D)4hr

Answer 1

1.15 hr

Explanation:

Given that:

To get bike fixed :

Speed = 3 miles per hour

Distance = 1.5 miles

Time taken = distance / speed

Time taken = 1.5 / 3 = 0.5 hour

Waiting time for repair = 30 minutes = 0.5 hours

Return home :

Speed = 10 miles per hour

Distance = 1.5 miles

Time taken = distance / speed

Time taken = 1.5 / 10 = 0.15 hour

Total time : (0.5 + 0.5 + 0.15) = 1.15 hr