A school starts at 8 a.m. The classes are for 5.25 hours. It takes 0.75 hour to reach school from Sally's house. It takes the same time for the return journey. At what time does Sally leave her home daily , and at what time does she reach home after school?

5.25 hours means 5 hours 15 minutes and 0.75 hours means 45 minutes.
School starts at 8 am.
And time taken from Sally's house to school is 45 minutes.
So she will leave her house at (8 am - 45 minutes) i.e. 7: 15 am.
Duration of classes = 5 hours 15 minutes
So classes ends at = 8 am + 5 hours 15 minutes = 1: 15 pm
And time taken from school to Sally's house = 45 minutes
Therefore Sally will reach her house at = 1:15 pm + 45 minutes = 2 pm

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14:09
• -2
starting time of school = 8 am
time of all classes = 5.25 hrs
time taken to reach school = 0.75 hrs or 75min
= 1 hr and 15 min
so , leaving time of Sally = 8.00 am - 1.15
= 6:45 am
reaching from school = 8.00 am+ 5.25 + 1.15
= 8.00+6.40
= 14.40 hrs or 2:40 pm
regards
• 1
hope it helps.
• 2
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