Home
Class 14
MATHS
Abhay rolled a pair of dice together. Wh...

Abhay rolled a pair of dice together. What is the probability that one dice showed a multiple of 2 and the second dice showed neither a multiple of 3 nor of 2?

A

`1/3`

B

`1/9`

C

`1/6`

D

`2/3`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to determine the probability that one die shows a multiple of 2 and the other die shows a number that is neither a multiple of 3 nor a multiple of 2. ### Step 1: Identify the outcomes for the first die The first die must show a multiple of 2. The multiples of 2 on a standard die (which has faces numbered from 1 to 6) are: - 2 - 4 - 6 Thus, the favorable outcomes for the first die are: **2, 4, 6**. This gives us a total of **3 favorable outcomes**. ### Step 2: Identify the outcomes for the second die The second die must show a number that is neither a multiple of 3 nor a multiple of 2. The numbers on a die are 1, 2, 3, 4, 5, and 6. - Multiples of 2: 2, 4, 6 - Multiples of 3: 3, 6 Now, we need to find the numbers that are neither multiples of 2 nor multiples of 3: - The numbers on the die are: 1, 2, 3, 4, 5, 6 - Excluding multiples of 2: 1, 3, 5 - Excluding multiples of 3: 1, 2, 3, 4, 5, 6 The only number that remains is **1** and **5**. Thus, the favorable outcomes for the second die are: **1, 5**. This gives us a total of **2 favorable outcomes**. ### Step 3: Calculate the total outcomes When rolling two dice, the total number of outcomes is: \[ 6 \times 6 = 36 \] (since each die has 6 faces). ### Step 4: Calculate the favorable outcomes The total favorable outcomes for the event where one die shows a multiple of 2 and the other die shows neither a multiple of 3 nor a multiple of 2 is: - For the first die (multiple of 2): 3 outcomes (2, 4, 6) - For the second die (neither multiple of 3 nor 2): 2 outcomes (1, 5) Thus, the total favorable outcomes = \( 3 \times 2 = 6 \). ### Step 5: Calculate the probability The probability \( P \) of the event is given by: \[ P = \frac{\text{Number of favorable outcomes}}{\text{Total outcomes}} = \frac{6}{36} = \frac{1}{6} \] ### Final Answer The probability that one die shows a multiple of 2 and the other die shows neither a multiple of 3 nor a multiple of 2 is \( \frac{1}{6} \). ---
Promotional Banner

Similar Questions

Explore conceptually related problems

Find the probability of that number which is multiple of 2 when one dice is throuwn once .

A pair of dice is rolled. What is the probability of getting a sum of 2?

Find the probability of getting a multiple of 2 in the throw of a dice.

When a pair of fair dice is rolled, then the probability of getting the sum as multiple of 3 is

Two dice are thrown simultaneously. What is the probability of obtaining a multiple of 2 on one of them and a multiple of 3 on the other

Find the probability of getting a multiple of 3 when one dice is thrown once .

Two dice are thrown together.What is the probability that the sum of the numbers on the two faces si neither divisible by 3 nor by 4?

The probability of having a multiple of 5 an throwing a dice is :

A dice is rolled once. What is the probability of getting : a 3 ?