A test has 225 questions. Robin answered 60% of the first 110 questions correctly. What percent of the remaining questions should he answer correctly so that he gets 75% of the maximum mark in the test approximately?
A) 89%
B) 84%
C) 81%
D) 78%
OA is A
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Tough percentages problem,
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mitaliisrani
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Rahul@gurome
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# of first 110 questions answered correctly = 60% of 110 = 66
Remaining questions = 115
75% of 225 = 168.75
x% of 115 + 66 = 168.75
1.15x = 102.75 which implies x is appr 89%
The correct answer is [spoiler](A)[/spoiler].
Remaining questions = 115
75% of 225 = 168.75
x% of 115 + 66 = 168.75
1.15x = 102.75 which implies x is appr 89%
The correct answer is [spoiler](A)[/spoiler].
Rahul Lakhani
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Quant Expert
Gurome, Inc.
https://www.GuroMe.com
On MBA sabbatical (at ISB) for 2011-12 - will stay active as time permits
1-800-566-4043 (USA)
+91-99201 32411 (India)
