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"I scored 10 out of 10."
Can this be written as "I scored 10 on 10" ?
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No, but you can use '10 for 10'.
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No. It doesn't make sense.

"I took one test out of 70" means that there were 70 tests you could possibly take, and you only did one of them.

Instead, you can say this:

The maximum possible score for the test was 70. I scored 62.

I scored 62 out of 70 on the test.
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Comments  
Can I say "I took a test out of 70" to mean that the maximum marks that could be scored was 70 ?
 AlpheccaStars's reply was promoted to an answer.
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