Data Sufficiency

In a demographic study, the population and total income of a certain region were estimated from
other data, and both estimates had lower and upper limits. At the time of the estimates, was the
per capita income for the region greater than $16,500?

(1) The lower limit for the estimate of the population was 330,000 people.
(2) The lower limit for the estimate of the total income was $5,500,000,000.

IMO C

Stmt 1 - Does not talk about Incomce NOT SUFF
Stmt 2 - Does not talk about population NOT SUFF

Together per capita income (lower limit) = 550000/330 = 16666.67

Greater than $16500.... SUFF

Unfortunately, answer is different.


Can anyone help us?

You need the 'upper' limit for the population, not the 'lower' limit to calculate the lower end of the estimate. To minimize a/b, you need min a and max b. So, E.

givemeanid wrote:You need the 'upper' limit for the population, not the 'lower' limit to calculate the lower end of the estimate. To minimize a/b, you need min a and max b. So, E.

Good point.. thanks givemeanid