Question

Jennifer needs to be at work at 10:10 A.M. It takes her 40 minutes to get ready in the morning and 45 minutes to drive to work. What is the latest time Jennifer can get up in the morning without being late for work?

Answer 1

Jennifer will take 1h&25min to get ready, drive and reach her office. She has to start movin' at 8:45am

Explanation:

1. Calculate how many minutes it will take in total to reach work.

40 minutes to get ready

45 minutes to drive

40+45=85

85 minutes into hours =???

60 minutes = 1 hour

85-60=25

So, Jennifer will take 1 hour & 25 Minutes to go to work.

2. Calculate WHEN she will have to wake up to go to work.

10:10 is the time she HAS to be there.

so...

We know that it will take longer than 1 hour

so let's first remove 1 hour

that makes it, 9:10

now, let's remove 25 minutes

9:10, so 10 minutes gone

then 15 minutes remaining

60-15=45

so, Jennifer has to get movin' at 8:45am to reach her office at the right time.

Jennifer will take 1h&25min to get ready, drive and reach her office. She has to start movin' at 8:45am

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