Question

Tony works in a factory that produces 1,000 computers each day. When 50 computers were sampled, it was found that 7 were defective. Estimate how many defective computers are made each day.

A. 140
B. 7
C. 169 - this one...?
D. 265
I kind of forget how to do these :[

Answer 1

A) 140

Explanation:

1000/50=20

20(7)=140

Answer 2

The answer is A, 140

Because every 50 computers, 7 are defective. You need to apply that ratio to the 1,000, so 1,000/50 is 20. Now apply that to the ratio, (7) so 7*20 which is 140. Thank me later :D