Question

Volunteers were 3/4 finished with the walkathon when they reached the 4 1/2 kilometer mark how long was the walkathon

Answer 1

It was 6 miles long.

Answer 2

6 km

Explanation:

Given,

The part of the race have finished =
`(3)/(4)`

And, the distance of race have completed =
`4(1)/(2)`

That is,

`(3)/(4)\text{ part of the race}=4(1)/(2)\text{ km}=(9)/(2)\text{ km}`

`\implies 1\text{ Part of the race}=(4)/(3)* (9)/(2)=(36)/(6)=6\text{ km}`

Hence, the length of the marathon would be 6 km.