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There are 4 letters and 4 addressed envelopes. find the probability that all the letters are not dispatched in the right envelope.

Asked by Kumar Upendra Akshay 03/02/2015 Last Modified 01/03/2018

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Related Questions

In a lottery , a girl chooses seven different natural numbers at random from 1 to 22 and if these seven numbers match with the seven numbers already fixed by the lottery committee , she wins the prize. what is the probability of winning the prize in the game ?

There are 22C7 ways. (7^22)C= (20×19×18×17×16×15×14)/(1×2×3×4×5×6×7)= 77520 So, Probability of winning the lottery = 1 / 77520

Kumar Upendra Akshay

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What would be the best method to teach online?

Firstly student must have a basic idea about the subject, then on the process of teaching it would be more like an 2-way discussion rather than only the tutor explaining.

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Can you find general solution of this equation dy/dx= (1+cosx)/(1-cosx).

int y *dy = int (1+cosx)/(1-cosx) *dx int y *dy= int ( 2 cos^2 x/2) / (2 sin^2 x/2) *dx int y *dy= int (cos^x/2) / (sin^2 x/2) * dx int y *dy= int (cot^2 x/2) * dx y = - (cosec ^ 2 x/2 ) / (1/2) +c y = -2 cosec ^2 x/2 ) +c

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Which state of India is the leading producer of coffee?

Among all the Indian States that produced more or less coffee, Karnataka shares almost 70% of the total production in the last financial year.

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Hi friends, please post the solution for following problem. If, (root X) + Y = 11 X + (root Y) =7 Then X , Y = ?

If we use the proper method, the solution is very lengthy and also it involves polynomial to the power 4. However, if we use hit and trial method, it becomes very easy. sqrt x + y =11, sqrt y + x =7,...

Bhaskar B.

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