A factory inspector found 3 defective microchips out of a total of 750 microchips made. Which proportion can be used to predict the number of
defects, x, in a batch of 10,000 microchips?

Option B

Step-by-step explanation:

Proportion of number of defective pieces to the number of microchips in a batch can be represented by the ratio =

If 3 microchips are defective in a batch of 750 microchips,

Proportion =

If 'x' chips are defective in a batch of 10000 microchips,

Proportion =

If both the proportions are equal,

Therefore, Option B will be the answer.

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.