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شائع Word Problems >

two fair dice are thrown once.what is the probability of getting the sum of the numbers on face up is 8

الحلّ

tw o f ai r d i ce a re t h ro w n o n ce . w ha t i s t h e p ro babi l i t y o f g e tt in g t h e s u m o f t h e n u mb ers o n f a ce u p i s 8

الحلّ

\frac{5}{36}

+1

عشري

0.13888 \dots

خطوات الحلّ

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 the sum of the numbers on face up is 8:

5

Probability

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

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

6^{2} = 36

= \frac{5}{36}

أمثلة شائعة

The radius of a circle is 6 feet. What is the circumference?Give the exact answer in simplest form. feet If twice a number added to 3 is divided by the number plus 2 , the result is five thirds. Find the number.the quotient of a number and three is ten The sum of six times a number x and forty-six is seventy.The sum of 5 times a number and 3 is 7