Question

A student can select one of 6 different math book, one of 3 different chemistry book & one of 4 different science book. In how many different way students can select book of math, chemistry & science?
Ans:-
72
Solve:-
=6c1 * 3c1 * 4c1
=6*3*4
=72

Answer 1

Answer:

what way we want to help you

Answer 2

=6c1 * 3c1 * 4c1

=6*3*4

=72

Concept introduction:

A permutation is an orderly arrangement of the items or numbers. Combinations are a means to choose items or numbers from a collection or set of items without regard for the items' chronological sequence.

Explanation:

Given that, a student can select one of 6 different math book, one of 3 different chemistry book & one of 4 different science book.

We have to find, different way students can select book of math, chemistry & science.

According to the question,

By applying permutation we get:

$6c1 * 3c1 * 4c1$ $=6*3*4$ $=72$.

Final Answer:

In $72$ different ways students can select book of math, chemistry & science.

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