CombinatoricsDifficulty 2.0Find the answerCEMC Pascal · Canada · 2005
The digits 1, 2, 5, 6, and 9 are all used to form five-digit even numbers, in which no digit is repeated. The difference between the largest and smallest of these numbers is
(A) 83916 (B) 79524 (C) 83952 (D) 79236 (E) 83016
The source for this one didn't record the answer, so there is nothing to check what you type against. Work it on paper and mark yourself against the solution below.
Source: CEMC, University of Waterloo,
licensed CC-BY-NC-4.0.
Statement reproduced verbatim; metadata (topic, difficulty, ordering) added by this project. Solutions are the publisher's, linked not copied.