# Thread: I used to run there and back on a 3.5 kilometers long road,

1. VIP Member
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Feb 2014
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6,262

## I used to run there and back on a 3.5 kilometers long road,

Some time ago I used to go running. I used to run there and back on a 3.5 kilometers long road, which made a total of 7 kilometres.

I read "I was 20 miles there and back" on a dictionary. Does it mean 20 miles one side or both?

Are my sentences correct now?

2. ## Re: I used to run there and back on a 3.5 kilometers long road,

Do you mean "It was 20 miles there and back"? That is the round trip - the total distance.
However be aware that "
I used to run there and back on a 3.5 kilometers long road" does not mean you ran 7 km, because you haven't said where you ran to and from. You've only given the length of the road you ran on.

3. VIP Member
Join Date
Apr 2009
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13,525

## Re: I used to run there and back on a 3.5 kilometers long road,

It's "3.5-kilometer long." We don't use the plural when using a measurement as an adjective. A 6-inch sub. A 10-foot pole. A 55-gallon drum.

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