The letters of the word ASSASSINATION are arranged at random. What is the probability of a getting NO TWO As are coming...???


2 years ago


Answers : (2)


ASSASSINATION can be arranged in 13!/(3!*4!*2!*2!) ways.


No two As coming together.


x  S  x  S  x  S  x  S  x  I  x  N  x  T  x  I  x  O  x  N x


A can be put in place of any x. (3 As can be put in 11 places in 11C3 ways).


No of favourable conditions = 10!/(4!*2!*2!) * 11C3


Probability = [10!/(4!*2!*2!) * 11C3]/[13!/(3!*4!*2!*2!)]

2 years ago

Your answer is great ..Thank u so much..I wont forget you valuable respobnse towards my question.!

2 years ago

Post Your Answer

More Questions On Algebra

Ask Experts

Have any Question? Ask Experts
Post Question
Answer ‘n’ Earn
Attractive Gift
To Win!!!
Click Here for details
If a and b are positive numbers , prove that the equation 1/x + (1/x+a) +(1/x+b) =0 has 2 real roots ,one b/w a/3 and 2a/3 and other b/w – 2b/3 and – b/3
Ans: Hello Student, Please find the solution of your question below, -> So equation f(x) has two real roots. You can easily found the value from here.
Jitender Singh 2 months ago
please solve this question without substituion method which of the following is true (a,b,c>0)? 2(a^3 b^3 +c^3) greater than or equal bc(b+c) +ca(c+a) + ab(a+b) (a^3 + b^3 + c^3)/3 greater...
Hello student, Please find the answer to your question below (a)First you need to prove that for positive values of x and y x/y + y/x >= 2 (x - y)² + 2xy = x² + y² Divide...
We now Arithmatic mean (AM) > Harmonic mean (HM) ie., between any two number a,b (a+b)/2 >2ab/(a+b) => 2/(a+b) => 2/(a+b) similarily 2/(b+c) So, 2/(b+c) + 2/(c+a) + 2/(a+b) =>2/(b+c)...
Y RAJYALAKSHMI 2 months ago
If p , q, n , l > 0 and the ratio of the roots of equation : lX^2 + nx + n = 0 be p:q then proove that p/q^1/2 + q /p^1/2 – n/l^1/2 = 0
Hello student, the ratio is p : q so let roots bept and qt. so pt + qt = - n/l => p + q = - n/(lt) and pqt^2 = n/l => pq = n/(lt^2) now (p/q)^1/2 + (q/p)1/^2 = (p + q)/(pq)^(1/2) =...
A straight line makes an intercept on the y-axis twice as long as that on the x-axis and is at a unit distance from the origin. Determine its equation.
Hello Student, Thanks & Regards Arun Kumar Btech, IIT Delhi Askiitians Faculty
Arun Kumar 2 months ago
1-sin a /1+ sin a = (sec a – tan a) 2 prove lhs = rhs
Hiii you can use the expansion first on the right hand side to convert it into ((1- sinA)/CosA) 2 and then write Cos 2 A as 1- Sin 2 A and then cancel out the common factors to get it equal...
Sourabh Singh yesterday
f(x)=cospx+sinpx is periodic then p must be rational or irrational or can be postive real number. Thanks
Ans: are periodic function with a period of 2pi. are periodic with a period of p can be anything other than zero. Thanks & Regards Jitender Singh IIT Delhi askIITians Faculty
Jitender Singh 2 months ago
View all Questions »