题目

In a certain country, the total weight of recycled newspapers increases annually by 0.79 million tons.


Quantity A

Percent increase in the weight of recycled newspapers in 1989 over 1988

Quantity B

Percent increase in the weight of recycled newspapers in 1990 over 1989

选项

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.


解析

假设1988年回收的报纸量为100万吨,1989年相比1988年的增长率为:\frac{1.79-1}{1}×100=79 随后,1990年相比1989年的增长率为:\frac{2.58-1.79}{1.79}×100=44 因此,79>44,A项数值更大!
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