The ratio of two adult brothers' ages is 5 to 8

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题目

The ratio of two adult brothers' ages is 5 to 8.

Quantity A

The ratio of the brothers' ages 8 years ago.

Quantity B

The ratio of the brothers' ages in 6 years.

A.

Quantity A is greater.

B.

Quantity B is greater.

C.

The two quantities are equal.

D.

The relationship cannot be determined from the information given.

无论我们决定使用什么年龄，只要满足两者都大于8的限制（否则B会为负数，而年龄不能为负数），数量B都会更大。例如，如果年龄是10和16（即2×5和2×8），数量A将是2/8，数量B将是4/10，因此B更大。答案B

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