The marks of three students A , B and C are in the ratio 4:5:6 if B got 75 marks , then find rhe marks of srudent A and B
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A:B:C=4:5:6
Marks scored by B=75 marks
Total marks scored by A B and C=75×15/5
=75×3=225
Marks scored by A= 225×4/15
=60 marks
Marks scored by C= 225×6/15
=90
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