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nydimaria [60]
3 years ago
9

If 80% is 72 marks, what is full marks

Mathematics
2 answers:
enot [183]3 years ago
4 0

I am pretty sure that it is one hundred. bye thanks for me being able to help! 
DochEvi [55]3 years ago
4 0
72 80
—— = ——
x 100

Cross multiply and solve

7200 = 80x

Divide each side by 80

7200 = 80x
——— ——
80 80

And voila x is the answer for full marks

90 = x
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