Question

Both of them with explanation.

Answer 1

9) Time when school starts = 8a.m
Time taken by sally to reach school from her house = 0.75hrs
= 0.75 × 60min
= 45min
Time when sally leave her house
= 8am - 45min
= 7:60 - 45
= 7:15 am
Therefore, Time when sally leave her house
= 7:15 am
Duration of classes = 5.25hrs
= 5hrs 0.25 × 60min
= 5hrs and 15min
So classes ends at = 8am + 5hrs 15min
= 13hrs 15min
Time taken by sally to reach her house from school = 45min
Therefore, Sally will reach her house at
= 1 : 15 pm + 45 min
= 2pm

10) Let us consider that the total no.of pages in the book as 1 page
So, if Vasanti has read 0.25 of the book, then the total no.of pages left will be (1 - 0.25)
=0.75 pages
If Vasanti reads 0.125 pages per day, then to read 0.75 pages she will take = 0.75/0.125
= 6 days