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HMMT 二月 2001 · GEN2 赛 · 第 4 题

HMMT February 2001 — GEN2 Round — Problem 4

专题
Discrete Math / 离散数学
难度
L3
来源
HMMT

题目详情

  1. Some students are taking a math contest, in which each student takes one of four tests. One third of the students take one test, one fourth take another test, one fifth take the next test, and 26 students take the last test. How many students are taking the contest in total?
解析
  1. Some students are taking a math contest, in which each student takes one of four tests. One third of the students take one test, one fourth take another test, one fifth take the next test, and 26 students take the last test. How many students are taking the contest in total? n n n Solution: Call the total number of students n . We know n = + + +26, so n = 120 . 3 4 5