Question

On Robert’s shelf are:

6 mystery books
2 science fiction books
3 adventure books
4 history books
Robert will randomly choose 1 book to read, not put it back and then grab another book to read. What is the probability that he chooses an adventure book and then a history book?

Answer 1

The answer would be 2/35

Answer 2

The answer is 2/35.

Explanation:

There is a total of 15 books and 3 adventure books, so there is a 1/5 chance you pick an adventure book. Then there are 14 books and 4 history books, so there is a 2/7 chance you pick a history book. 1/5 times 2/7 is 2/35.