336,265 views
15 votes
15 votes
3.(09.01 MC)

Henry rolls 2 number cubes numbered 1 through 6 while playing his favorite board game. He will get a second turn if he rolls a sum that is an even number less than 10.
What are Henry's chances of getting a second turn when he rolls the number cubes? (2 points)

User Pavel Zdarov
by
2.7k points

1 Answer

12 votes
12 votes

Answer:

Explanation:

The even numbers less than 10 are

2 which can only be done 1 way: when you roll snake eyes.

4 can be done 3 ways (2,2) (3,1) and (1, 3)

6 can be done 5 ways (2,4) (4,2) (5,1) (1,5) and (3,3)

8 can be done 5 ways (4,4) (2,6)(6,2)(5,3) and (3, 5)

There are 36 ways of throwing the number cubes.

We have a total of 5 + 5 + 3 + 1 = 14 ways

The answer you want is

14/36 = 7 / 18 = 0.389

User Scott Noyes
by
3.3k points