MathDB
Product of Negative Numbers

Source: 2015 amc 10b #10

February 26, 2015
AMC

Problem Statement

What are the sign and units digit of the product of all the odd negative integers strictly greater than −2015-2015? <spanclass=′latex−bold′>(A)</span>It is a negative number ending with a 1.<span class='latex-bold'>(A) </span> \text{It is a negative number ending with a 1.} <spanclass=′latex−bold′>(B)</span>It is a positive number ending with a 1.<span class='latex-bold'>(B) </span> \text{It is a positive number ending with a 1.} <spanclass=′latex−bold′>(C)</span>It is a negative number ending with a 5.<span class='latex-bold'>(C) </span> \text{It is a negative number ending with a 5.} <spanclass=′latex−bold′>(D)</span>It is a positive number ending with a 5.<span class='latex-bold'>(D) </span> \text{It is a positive number ending with a 5.} <spanclass=′latex−bold′>(E)</span>It is a negative number ending with a 0.<span class='latex-bold'>(E) </span> \text{It is a negative number ending with a 0.}
Back to ProblemsView on AoPS