Maths Olympiad Prep

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Problem 338

Combinatorics Difficulty 2.0 Find the answer CEMC 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) 8391683\,916 (B) 7952479\,524 (C) 8395283\,952 (D) 7923679\,236 (E) 8301683\,016

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