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题库 / GMATAdvanced-DS-3
A country's per capita national debt is its national debt divided by its population. Is the per capita national debt of Country G within $5 of $500?
(1) Country G's national debt to the nearest $1,000,000,000 is $43,000,000,000
(2) Country G's population to the nearest 1, 000,000 is 86,000,000
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
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直接相除，43,000/86，结果是500，所以确定其最大值能否超过500就好，就用最大的可能的分母43,500，除以最小的可能的分子85.5，不过这么算比较麻烦，直接用500乘以分子85.5，如果乘积达不到43,500，说明500不够，也就说明原本的结果范围上限大于500
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