Question

Which is the constant of proportionality for the data in the table?

A
18

B
2

C
6

D
12

Answer 1

C) 6

Explanation:

From the given data we can find the constant of proportionality by dividing The number of people by number of cars.

Constant of proportionality =
`\frac{\textrm{Number of people}}{\textrm{Number of cars}}`

Taking any point from the table will give the same constant of proportionality as they are proportional quantities.

Constant of proportionality =
`(18)/(3)=(30)/(5)=(36)/(6)=(48)/(8)=6`

This can be written as 6 people per car.

For 10 cars, number of people will be =
`10* 6`=60 people.