The school library has 50 action adventure novels, 15 romances and 10 historical novels. Julie wants to take one of each type for her sick cousin to read. How many different choices of three books are available to her?

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Solution

As there are 50 action adventure novels so there are 50 ways to choosing these novel.
There are 15 romances novel so there are 15 ways to chose these novel .
There are 10 historical novels so there are 10 ways to choose these novel.
$∴$ Total number of choice= $50 \times 15 \times 10 = 7500$

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The school library has 50 action adventure novels, 15 romances and 10 historical novels. Julie wants to take one of each type for her sick cousin to read. How many different choices of three books are available to her?

As there are 50 action adventure novels so there are 50 ways to choosing these novel.There are 15 romances novel so there are 15 ways to chose these novel .There are 10 historical novels so there are 10 ways to choose these novel.∴ Total number of choice=50×15×10=7500

As there are 50 action adventure novels so there are 50 ways to choosing these novel.
There are 15 romances novel so there are 15 ways to chose these novel .
There are 10 historical novels so there are 10 ways to choose these novel.
$∴$ Total number of choice= $50 \times 15 \times 10 = 7500$