MathDB
2022 B Individual #16

Source:

April 30, 2022
2022 B Individual

Problem Statement

An ant climbs either two inches or three inches each day. In how many ways can the ant climb twelve inches, if the order of its climbing sequence matters? <spanclass=latexbold>(A)</span>8<spanclass=latexbold>(B)</span>9<spanclass=latexbold>(C)</span>10<spanclass=latexbold>(D)</span>12<spanclass=latexbold>(E)</span>14<span class='latex-bold'>(A) </span>8\qquad<span class='latex-bold'>(B) </span>9\qquad<span class='latex-bold'>(C) </span>10\qquad<span class='latex-bold'>(D) </span>12\qquad<span class='latex-bold'>(E) </span>14