MathDB
Inserting Plugs

Source:

January 12, 2009

Problem Statement

A foreman noticed an inspector checking a 3" 3"-hole with a 2" 2"-plug and a 1" 1"-plug and suggested that two more gauges be inserted to be sure that the fit was snug. If the new gauges are alike, then the diameter, d d, of each, to the nearest hundredth of an inch, is: <spanclass=latexbold>(A)</span> .87<spanclass=latexbold>(B)</span> .86<spanclass=latexbold>(C)</span> .83<spanclass=latexbold>(D)</span> .75<spanclass=latexbold>(E)</span> .71 <span class='latex-bold'>(A)</span>\ .87 \qquad <span class='latex-bold'>(B)</span>\ .86 \qquad <span class='latex-bold'>(C)</span>\ .83 \qquad <span class='latex-bold'>(D)</span>\ .75 \qquad <span class='latex-bold'>(E)</span>\ .71