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Question

Answer

Let the original amount of money deposited into each bank account be X

Let the total amount of money in the end be 9Y

X = 2Y

X + 80 = 7Y

7Y – 2Y = X + 80 – X

5Y = 80

Y = 16

X = 2(16) = 32

X + 44 = 32 + 44 = 76

Test for correct answer

Total amount of money in Account A = X = 32
Total amount of money in Account C = X + 80 = 32 + 80 = 112

Since 32:112 is a ratio of 2:7, the answer is proven to be correct.

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