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26 Nov 2023, 11:57
Kudos
Bookmarks
Dropdown 1: 42%
Dropdown 2: Choose this one
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
67% (01:20) correct
33%
(01:13)
wrong
based on 620
sessions
History
Date
Time
Result
Not Attempted Yet
(A) 42%
(B) 50%
(C) 70%
(D) 90%
(E) 110%
6. Please choose this drop-down as a Graphs question needs to have 2 .
ShowHide Answer
Official Answer
Dropdown 1: 42%
Dropdown 2: Choose this one
30 Nov 2023, 10:03
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Non-fiction sales in 1984: 40 thousand books
Non-fiction sales in 1987: little less than 60 thousand books
Percent increase = little less than (60-40)/40 = little less than 50%
42% is the only option less than 50%
Non-fiction sales in 1987: little less than 60 thousand books
Percent increase = little less than (60-40)/40 = little less than 50%
42% is the only option less than 50%
25 Mar 2026, 18:45
Kudos
Bookmarks
Hi there,
Great question! Let's walk through this step by step.
The question asks: By approximately what percent did nonfiction sales increase from 1984 to 1987?
Step 1: Read the nonfiction values from the graph.
The nonfiction line is the solid line with square markers.
- In 1984, the nonfiction line sits at approximately 40 (thousand books).
- In 1987, the nonfiction line sits at approximately 57 (thousand books).
Step 2: Apply the percent increase formula.
Percent Increase = (New Value - Old Value) / Old Value × 100
= (57 - 40) / 40 × 100
= 17 / 40 × 100
= 42.5%
This rounds to approximately 42%, which matches the correct answer.
A common trap here is confusing the two lines. The dashed line with diamond markers is Fiction, and the solid line with square markers is Nonfiction. Make sure you're reading the correct line! For instance, Fiction in 1984 is only about 30 thousand — using that value would give you a completely different (and wrong) answer.
Another common mistake is using the wrong base in the percentage formula. Note that the base (denominator) must be the OLD value (1984 = 40), not the new value (1987 = 57). If you accidentally divided by 57, you'd get about 30%, which isn't even one of the options — but it's a mistake worth watching out for on test day.
Answer: 42%
Great question! Let's walk through this step by step.
The question asks: By approximately what percent did nonfiction sales increase from 1984 to 1987?
Step 1: Read the nonfiction values from the graph.
The nonfiction line is the solid line with square markers.
- In 1984, the nonfiction line sits at approximately 40 (thousand books).
- In 1987, the nonfiction line sits at approximately 57 (thousand books).
Step 2: Apply the percent increase formula.
Percent Increase = (New Value - Old Value) / Old Value × 100
= (57 - 40) / 40 × 100
= 17 / 40 × 100
= 42.5%
This rounds to approximately 42%, which matches the correct answer.
A common trap here is confusing the two lines. The dashed line with diamond markers is Fiction, and the solid line with square markers is Nonfiction. Make sure you're reading the correct line! For instance, Fiction in 1984 is only about 30 thousand — using that value would give you a completely different (and wrong) answer.
Another common mistake is using the wrong base in the percentage formula. Note that the base (denominator) must be the OLD value (1984 = 40), not the new value (1987 = 57). If you accidentally divided by 57, you'd get about 30%, which isn't even one of the options — but it's a mistake worth watching out for on test day.
Answer: 42%
