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# an urn contains 6 red, 3 blue and 2 green marbles. if 2 marbles are picked at random, what is the probability that both are red?

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### Mohammed

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Question

An urn contains 6 red, 4 blue and 3 green marbles. If 2 marbles are picked at random, then what is the probability that both the marbles are red?

Open in App Solution

The correct option is B

5/26 P(E) = 6 C 2 13 C 2 = 5 26 .

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## Anurn contains 6 red,4 blue ,2 green and 3yellow marbles If two marbles are picked at random , what is the probability that both are red ?

Number of way of selecting 2 red marbles from 6 red marbles =""^(6)C(2)=15 Number of ways of selecting 2 marbles from urn ="^(15)C(2)=105 Required probability =(15)/(105)=(1)/(7)

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Anurn contains 6 red,4 blue ,2...

Anurn contains 6 red,4 blue ,2 green and 3yellow marbles

If two marbles are picked at random , what is the probability that both are red ?

Updated On: 27-06-2022

00 : 23

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Text Solution Open Answer in App A 1 6 16 B 1 3 13 C 2 15 215 D none of these Answer

The correct Answer is D

Solution

Number of way of selecting 2 red marbles from 6 red marbles

= 6 C 2 =15 =6C2=15

Number of ways of selecting 2 marbles from urn

= 15 C 2 =105 =15C2=105

Required probability

= 15 105 = 1 7 =15105=17

Answer

Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.

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## An urn contains 6 red 5 blue and 2 green marbles

An urn contains 6 red, 5 blue and 2 green marbles. If 2 marbles are picked at random, what is the probability that both are red? a) $$\frac{6}{{13}}$$ b) $$\frac{{5}}{{26}}$$ c) $$\frac{{5}}{{13}}$$ d) $$\frac{{7}}{{26}}$$

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## An urn contains 6 red, 5 blue and 2 green marbles. If 2 marbles are picked at random, what is the probability that both are red?

A. 6 13 613 B. 5 26 526 C. 5 13 513 D. 7 26 726

Answer: Option B

### Solution(By Examveda Team)

P(Both are red), = 6 C 2 13 C 2 = 5 26 =6C213C2=526

## Join The Discussion

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Mohammed 2 day ago

Guys, does anyone know the answer?