A bag contains 10 white and 3 black bal...

A bag contains 10 white and 3 black balls. Balls are drawn one by one without replacement till all the black ball are drawn. The probability that the procedure of drawing balls will come to an end at the seventh drawn is :

`(105)/(286)`

`(15)/(286)`

`(181)/(286)`

none of these

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

PROBABILITY
OBJECTIVE RD SHARMA ENGLISH|Exercise Section II - Assertion Reason Type|22 Videos
PERMUTATIONS AND COMBINATIONS
OBJECTIVE RD SHARMA ENGLISH|Exercise Chapter Test|60 Videos
QUADRATIC EXPRESSIONS AND EQUATIONS
OBJECTIVE RD SHARMA ENGLISH|Exercise Chapter Test|50 Videos

Similar Questions

Explore conceptually related problems

A bag contains W white and 3 black balls. Balls are drawn one by one without replacement till all the black balls are drawn. Then find the probability that this procedure for drawing the balls will come to an end at the rth draw.

A bag contains 5 white, 7 red and 3 black balls. If three balls are drawn one by one without replacement, find the probability that none is red.

A bag contains 5 white, 7 red and 8 black balls. If four balls are drawn one by one without replacement, find the probability of getting all white balls.

A bag contains 5 white, 7 red and 8 black balls. Four balls are drawn one by one with replacement, what is the probability that at least one is white?

A bag contains 5 white, 7 red and 4 black balls. If four balls are drawn one by one with replacement, what is the probability that none is white?

An urn contains 3 white, 4 red and 5 black balls. Two balls are drawn one by one without replacement. What is the probability that at least one ball is black?

A bag contains 5 while, 7 red and 4 black balls. If four balls are drawn one by one with replacement, what is the probability that none is white ?

An urn contains 3 white, 4 red and 5 black balls. Two balls re drawn one by one without replacement. What is the probability that at least one ball is black?

OBJECTIVE RD SHARMA ENGLISH-PROBABILITY -Chapter Test

Two friends Aa n dB have equal number of daughters. There are three ci...
Text Solution
|
A bag contains n white and n red balls. Pairs of balls are drawn witho...
Text Solution
|
A bag contains 10 white and 3 black balls. Balls are drawn one by one...
Text Solution
|
If A1,A2,....An are n independent events such that P(Ak)=1/(k+1),K=1,2...
Text Solution
|
Three of the six vertices of a regular hexagon are chosen the rando...
Text Solution
|
Let 0ltP(A)lt1, 0ltP(B)lt1 and P(AcupB)=P(A)+P(B)-P(A)P(B), then,
Text Solution
|
Write the probability that a number selected at random from the set of...
Text Solution
|
For any two independent events E1 and E2 P{(E1uuE2)nn(bar(E1)nnbar(E2)...
Text Solution
|
If Aand B are two events than the value of the determinant choosen at ...
Text Solution
|
The probability that a man will live 10 more years is 1//4 and the pro...
Text Solution
|
The probability that atleast one of the events A and B occurs is 0.6. ...
Text Solution
|
A man alternately tosses a coin and throws a die beginning with the...
Text Solution
|
A and B are two independent events. The probability that A and B occur...
Text Solution
|
A, B, C are any three events. If P(S) denotes the probability of S hap...
Text Solution
|
In a class of 125 students 70 passed in Mathematics, 55 in Statistics,...
Text Solution
|
A box contains 10 mangoes out of which 4 are rotten. Two mangoes are t...
Text Solution
|
A lot consists of 12 good pencils , 6 with minor defects and 2 with ma...
Text Solution
|
3 mangoes and 3 apples are in a box. If 2 fruits are chosen at random,...
Text Solution
|
There are 3 bags which are known to contain 2 white and 3 black, 4 ...
Text Solution
|
Among the workers in a factory only 30% receive bonus and among those ...
Text Solution
|