We know that 25% of the class got an A on the last exam, and 30% got a B. What percent got either an A or a B?
A) 25% × 30% = 7.5%
B) 25% + 30 % = 55%
C) 45%
D) We cannot tell from the information that is presented.

Question

Quizplus · Accepted Answer

To find the percentage who got either an A or a B, we need to add the percentages of those who got an A and those who got a B. Therefore, the answer is 25% + 30% = 55%. Option A is incorrect as it calculates the product of the percentages, not the sum. Option C is incorrect as it assumes that none of those who got an A also got a B, which is not given in the problem. Option D is incorrect as we can determine the answer based on the information provided.

We Know That 25% of the Class Got an a on the Last