Bunuel
150 representatives of an organization participated in a survey. 50% of all the representatives considered global warming as the biggest threat to earth. How many of the representatives were male?
(1) In the survey, 60 women concluded global warming as the biggest threat to earth.
(2) Among the representatives, 66.67% women and 25% men concluded global warming as the biggest threat to earth.
Breaking Down the Info:This is a 2 by 2 table question, but we will explain it without a table. We are given 75 people consider global warming as the biggest threat.
Statement 1 Alone:Combined with the given information, we know that 15 men consider global warming as the biggest threat. We still need to know how many men do not consider global warming as the biggest threat. Insufficient.
Statement 2 Alone:We don't know the breakdown of women and men or any of the subcategory squares for useful information. Insufficient.
Both Statements Combined:The 15 men represent 25% of all men, so there are 60 men in total. Sufficient.
We can also double-check that the 60 women represent 66% of the total women, which refers to 90 women in total and the total population is indeed 150.
Answer: C