From statement 2,
Let's say,
the number of companies that did not indicate that they had a business recovery plan = X
Therefore, the number of companies that had business recovery plan = 4X (read the statement 2 again, if you didn't get this point).
Total number of companies = Companies have revovery plan + companies don't have recovery plan = 1000
hence, X + 4X = 1000
5X = 1000
X = 200
Hence, 4X = 800, therefore 80% companies showed that they had business recovery plan.
Survey-GPREP1
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Source: Beat The GMAT — Data Sufficiency |
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codesnooker
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