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HMMT 十一月 2012 · 冲刺赛 · 第 2 题

HMMT November 2012 — Guts Round — Problem 2

专题
Contest Math / 竞赛数学
难度
L3
来源
HMMT

题目详情

英文原题

  1. [ 5 ] Albert is very hungry, and goes to his favorite burger shop to buy a meal, which consists of aburger, a side, and a drink. Given that there are 5 different types of burgers offered, 3 different typesof sides, and 12 different types of drinks, find the number of meals Albert could get.
解析

英文解析

  1. [ 5 ]
    Answer: 180 Albert’s choice of burgers, sides, and drinks are independent events. Therefore,
    we can use the Multiplication Principle of Counting Independent Events to find the total number ofdifferent meals that Albert can get is:
    5 × 3 × 12 = 180