Multiple choice general knowledge math & puzzles

A student can select one of 6 different mathematics books, one of 3 different chemistry books and one of 4 different science books. In how many different ways can a student select a book of mathematics, a book of chemistry and a book of science?

  1. 76

  2. 72

  3. 78

  4. 90

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Using the multiplication principle for independent choices, the student has 6 choices for math, 3 for chemistry, and 4 for science. Total ways = $6 \times 3 \times 4 = 72$.