Question

Which ratio forms a proportion with 1620 ? A. 4/10 B. 32/50 C. 8/12 D. 4/5

Answer 1

Option D is correct.

`(4)/(5)` is the ratio form a proportion with
`(16)/(20)`

Explanation:

Proportion states that the two fraction or ratios are equal.

i.e,
`(a)/(b) = (c)/(d)`

Given the ratio
`(16)/(20)`

To find the proportion of this ratio forms.

`(16)/(20)`

Divide top and bottom by 4 , we have;

`((16)/(4) )/((20)/(4) )`

Simplify:

`(4)/(5)`

therefore, a ratio form a proportion with
`(16)/(20)` is,
`(4)/(5)`