The first twelve letters of the alphabet...

The first twelve letters of the alphabet are written down at random . What is the probability that there are four letters between the A and the B?

A

`(7)/(33)`

B

`(7)/(66)`

C

`(7)/(99)`

D

`(5)/(33)`

Text Solution

Verified by Experts

The correct Answer is:

(b)

Topper's Solved these Questions

PROBABILITY
ARIHANT MATHS|Exercise Exercise For Session 2|15 Videos
PROBABILITY
ARIHANT MATHS|Exercise Exercise For Session 3|10 Videos
PROBABILITY
ARIHANT MATHS|Exercise Example|4 Videos
PERMUTATIONS AND COMBINATIONS
ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|28 Videos
PRODUCT OF VECTORS
ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|52 Videos

Similar Questions

Explore conceptually related problems

The letters of the word ‘SOCIETY’ are placed at random in a row. What is the probability that the three vowels come together ?

If the letters of the word ASSASSIN are written down in a row, the probability that no two S's occur together, is

If a letter is Chosen at random from the English alphabet, find the probability that the letter is : a vowel.

A letter from the English alphabet is seleted at random. Find the chance that it is a vowel.

If a letter is Chosen at random from the English alphabet, find the probability that the letter is : a Consonant.

A and B stand in a ring with 10 other persons . If the arrangement of the twelve persons is at random , find the chance that there are exactly three persons between A and B.

A single letter is selected at random from the word PROBABILITY the probability that it is a vowel is:

Seven digits from the numbers 1 to 9 are written in random order. If the probability that this seven digit number divisible by 9 is p, then the value of 18p is

A letter is chosen at random, from the word 'ASSASSINATION'. Find the probability that letter is a vowel

ARIHANT MATHS-PROBABILITY-Exercise For Session 1

Probabilities of A, B and C of solving a problem are : 1/2, 1/3 and 1/...
Text Solution
|
A dice is thrown three times and the sum of the thrown numbers in 15. ...
Text Solution
|
Three faces of a fair die are yellow, two faces red and one blue. The ...
Text Solution
|
A speaks truth in 75% and B in 80% of the cases. In what percentage of...
Text Solution
|
An unbiased die with faced marked 1, 2, 3, 4, 5, and 6 is rolled four ...
Text Solution
|
Three numbers are chosen at random without replacement from 1,2,....10...
Text Solution
|
Seven white balls and three black balls are randomly placed in a row. ...
Text Solution
|
Two numbers are selected randomly from the set S={1,2,3,4,5,6} without...
Text Solution
|
If (1 + 3p)/(3), (1 - p)/(4) and (1 - 2p)/(2) are the probabilities of...
Text Solution
|
Three identical dice are rolled . Find the probability that the same n...
Text Solution
|
If the letters of the word ASSASSIN are written down in a row, the pro...
Text Solution
|
A box contains 2 balck, 4 white, and 3 balls. One ball is drawn at ran...
Text Solution
|
If three distinct number are chosen randomly from the first 100 natura...
Text Solution
|
There are 2 vans each having numbered seats, 3 in the front and 4 at t...
Text Solution
|
A and B stand in a ring with 10 other persons . If the arrangement of ...
Text Solution
|
The first twelve letters of the alphabet are written down at random ....
Text Solution
|
If 6 boys and 6 grils sit in a row at random, then the probability tha...
Text Solution
|
If from each of the three boxes containing 3 whiter and 1 black, 2 w...
Text Solution
|
The probability of getting number less than or equal to 6, when a die ...
Text Solution
|
if letters of the word MATHEMATICS are arranged then the probability t...
Text Solution
|