Question

What chance is there of
rolling a total of 5 with two dice?
a

Answer 1

Answer:  1/9

Explanation:

Here are all of the ways to get a sum of 5

• 1+4 = 5
• 2+3 = 5
• 3+2 = 5
• 4+1 = 5

There are A = 4 ways to get what we want. This is out of B = 6*6 = 36 ways to roll two dice.

The probability we're after is therefore A/B = 4/36 = 1/9

Answer 2

Step-by-step explanation:

Assuming two 6 sided fair dice marked 1 thru 6 each

If you roll any number from 1 to 4 on one die, there is a single number 5-n you can roll on the second die, to get a five.

Your chance of rolling a 1 thru 4 on a d6 is 4/6

Your chance of rolling a given number on a d6 is 1/6

Thus, 4/6*1/6=4/36, or 1/9

Eight times out of nine you’re going to roll something other than a five.