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Mathematics>Standard Multiple Choice

Read the following SAT test question and then click on a button to select your answer.

In a certain lawn-mower factory, 0.06 percent of all mowers produced are defective. On the average, there will be 3 defective mowers out of how many produced?

(A) 500
(B) 1800
(C) 5000
(D) 18000
(E) 50000

答案和解析

答案：C

解析：

Recall that 0.06 percent means 0.06 out of every 100, or 6 out of every 10000. The question asks for an equivalent ratio: 3 out of how many. The ratio 6 out of 10000 can be reduced (by dividing both members by 2) to 3 out of 5000.