MathDB
2023 Individual #6

Source:

April 26, 2023
2023 Individual

Problem Statement

If a+3b=9a+3b = 9 and a+11b=21a+11b =21, what is the missing coefficient in the expression 2a+?‾b=272a+\underline{?}b = 27?
<spanclass=′latex−bold′>(A)</span>5<spanclass=′latex−bold′>(B)</span>6<spanclass=′latex−bold′>(C)</span>9<spanclass=′latex−bold′>(D)</span>12<spanclass=′latex−bold′>(E)</span>14<span class='latex-bold'>(A) </span> 5\qquad<span class='latex-bold'>(B) </span> 6\qquad<span class='latex-bold'>(C) </span> 9\qquad<span class='latex-bold'>(D) </span> 12\qquad<span class='latex-bold'>(E) </span> 14
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