Question

A student can select one of 6 different mathematics books, one of 3 different chemistry books and 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 ?

• A. 36
• B. 48
• C. 72
• D. none of these

Answer 1

The correct option is C 72

The total number N of different ways that the students can select his 3 books is given by :

$N=6\times 3\times 4=72$