Question:
The graph shows the number of chapters Sarah read in a book each day of a week.
Which statements are true? Check all that apply.
A Sarah read twice as many chapters Wednesday as Monday.
B Sarah read twice as many chapters Sunday as Tuesday.
C Sarah read more than four chapters on two days.
D The most chapters Sarah read on one day is five.
E Sarah read fewer than two chapters on three days.
F Sarah read at least three chapters on four days.
G The total number of chapters Sarah read on the weekend was more than the total number she read on the weekdays.
H The total number of chapters Sarah read on the weekend was the same as the total number she read on the weekdays.
Answer:
Statement A, C, F, H are true.
Solution:
Number of chapters read by Monday = 1
Number of chapters read by Tuesday = 3
Number of chapters read by Wednesday = 2
Number of chapters read by Thursday = 2
Number of chapters read by Friday = 3
Number of chapters read by Saturday = 6
Number of chapters read by Sunday = 5
Option A: Sarah read twice as many chapters Wednesday as Monday.
2 times Monday = 1 × 2
Wednesday read = 2
It is true.
Option B: Sarah read twice as many chapters Sunday as Tuesday.
2 times Tuesday= 2 × 3 = 6
Sunday read = 5
It is false.
Option C: Sarah read more than four chapters on two days.
Saturday = 6 (more than 4)
Sunday = 5 (more than 4)
It is true.
Option D: The most chapters Sarah read on one day is five.
No, Sarah read mostly one chapter on one day.
It is false.
Option E: Sarah read fewer than two chapters on three days.
No, Sarah read fewer than two chapters on one day only.
It is false.
Option F: Sarah read at least three chapters on four days.
Tuesday, Friday, Saturday and Sunday read at least four chapters.
It is true.
Option G: The total number of chapters Sarah read on the weekend was more than the total number she read on the weekdays.
The total number she read on the weekend = 6 + 5 = 11
The total number she read on the weekdays = 1 + 3 + 2 + 2 + 3 = 11
Both are equal.
It is false.
Option H: The total number of chapters Sarah read on the weekend was the same as the total number she read on the weekdays.
Yes, it it proved in option G.
It is true.
Hence statement A, C, F, H are true.