Maths Olympiad Prep

Track / Stage 4 / 152 of 340 #412 of 1964

Problem 412

AMC 12 late, AIME early
Combinatorics Difficulty 4.8 Find the answer

10. A 2×32 \times 3 rectangular flower bed is divided into six 1×11 \times 1 square regions: A,B,C,D,E,FA, B, C, D, E, F. Each region is planted with one type of plant, and adjacent regions must have different plants. Given 6 types of plants to choose from, there are \qquad different planting schemes.

A number or a short expression. Spacing and $ signs are ignored.

Official solution

10.1323010.13230

Source: NuminaMath-1.5, licensed Apache-2.0. Statement and solution reproduced as published; topic, difficulty and ordering added by this site.