It's simple cross multiplication wala logic to be used here...
If you score 100 on 100 marks and that if it's equivalent to 60 marks..
Then scoring 89 marks out of 100 will be equivalent to..
89*60/100
= 5340/100
= 53.40
I hope this is what you wanted, if not, feel free to comment your doubt below ..
Thank you.
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