Five years ago the average of A and B was 15 years. Average age of A, B and C today is 20
years how old will C be after 10 vears
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Step-by-step explanation:
Five years average a,b was 15
Today average a,b,c are 20 find their ages currently
15divide by 2 is 7.5 so and b are 7.5
C is 20-15equals to 5 so ten years later c will be 5+10 equals 15
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