Explanation

Start by computing the sums of the average ratings using the table:

Category	A	B	C
Convenience	5.1	8.0	4.3
Friendliness	5.0	5.5	5.4
Price	5.0	6.4	3.5
Promptness	6.5	6.9	4.1
Reliability	7.8	7.5	4.9
Total:	29.4	34.3	22.2

The airline with the least sum is C (22.2)

Now look at the pie graph to see how many travel agents ranked Airline C first. The bottom left quadrant of the circle has 20 agents rating CAB, meaning C was first, A was second and B was third. Above this, 2 agents rated CBA, meaning C was first, B was second, and A was third. So in all 22 agents (20 + 2) rated C first.

Now determine the fraction: 22 travel agents out of 100 total rated C first, so 22/100.
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Can '11/50' be the answer, too?
I'm Korean, and it is common to reduce a fraction in Korea.
When I submit 11/50 as an answer, will ETS grade it as the wrong?

11/50 is also correct! You can reduce to lowest fractions in such questions.
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