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840 articles are divided among A B and C. Such that A gets 3 times that of B and B gets that 5 times of C​

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495 cents Roth
Answer:

a + b + c = 840

a=3b and b=5c

3b+b+c=840

3(5c)+5c+c=840

15c+5c+c=840

21c=840

c=840/21

c = 40

b=5c

b=5(40)

b = 200

a=3b

a=3(200)

a = 600

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