Solve the problem.

-A quality-control inspector examined 290 calculators and found 15 of them to be defective. At this rate, how many defective calculators will there be in a batch of 15,370 calculators?
A) 795 calculators
B) 4 calculators
C) 53 calculators
D) 4350 calculators

Question

Solve the problem.

-A quality-control inspector examined 290 calculators and found 15 of them to be defective. At this rate, how many defective calculators will there be in a batch of 15,370 calculators?
A) 795 calculators
B) 4 calculators
C) 53 calculators
D) 4350 calculators

Quizplus · Accepted Answer

The rate of defective calculators is 15 out of 290. To find the expected number of defective calculators in a batch of 15,370, use the proportion 15/290 = x/15370, solving for x gives x = (15*15370)/290 = 795.

Solve the Problem. -A Quality-Control Inspector Examined 290 Calculators and Found 15 of and Found