en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular Word Problems >

a pair of dice is rolled. what is the probability of getting a sum greater than 7

Solution

a p ai r o f d i ce i s ro ll e d . w ha t i s t h e p ro babi l i t y o f g e tt in g a s u m g re a t er t han 7

Solution

\frac{5}{12}

+1

Decimal

0.41666 \dots

Solution steps

The possible outcomes when two dice are rolled are

6 \cdot 6

Therefore, the number of possible outcomes:

6^{2}

Find the number of favorable outcomes of getting a sum greater than 7:

15

Probability

= \frac{number of favorable outcomes}{total number of outcomes}

= \frac{15}{6 ^{2}}

\frac{15}{6 ^{2}} = \frac{5}{12}

= \frac{5}{12}

Popular Examples

The difference of two number is 16. The greater number is 5 less than 4 times the smaller number. Find the two numbers.The circumference of a circle is 3𝜋 inches. What is the area?Four times Iya’s age less 5 is 51. How old is Iya?The circumference of a circle is 25pi m. What is the area, in square meters? Express your answer in terms of pipi Find two consecutive whole numbers that sqrt(12) lies between.