Oluwafunmilayo
Of the 1,000 companies responding to a certain survey, what percent indicated that they had a business recovery plan?
(1) 200 of the companies did not indicate that they had a business recovery plan.
(2) The number of companies that indicated that they had a business recovery plan was 4 times the number that did not indicate that they had a business recovery plan.
Hi Team, I’m new here.
I’d appreciate if anyone can help me understand this data sufficiency question.
Of the 1,000 companies responding to a certain survey, what percent indicated that they had a business recovery plan?(1) 200 of the companies did not indicate that they had a business recovery plan.
This implies that the remaining 800 companies, which constitutes 80% of the total, indicated that they had a plan. Sufficient.
(2) The number of companies that indicated that they had a business recovery plan was 4 times the number that did not indicate that they had a business recovery plan.
Thus, {Indicated} + {Indicated}/4 = 1,000, which yields {Indicated} = 800, or 80%. Sufficient.
Answer: D.
Hope it's clear.
This question is discussed here:
https://gmatclub.com/forum/of-the-1-000 ... 66970.html