Permutation and Combination

There are 25 students in a class. Find the number of ways in which a committee of 3 students is to be formed ?

Answer : D . 3200

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If 56Pr+ 6 : 54Pr + 3 = 30800 : 1 then the value of r is ?

Answer : B. 41

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How many can straight lines be drawn from 15 non-collinear points ?

Answer : A. 105

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In a meeting between two countries, each country has 12 delegates. All the delegates of one country shake hands with all delegates of the other country. Find the number of handshakes possible ?

Answer : B . 144

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In how many ways, the letters of the word ‘BANKING’ can be arranged ?

Answer : D. 2520

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In how many different ways, can the letters of the word ‘INHALE’ be arranged ?

Answer : A. 720

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Find the value of 5P2 ?

Answer : C . 20

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8 men entered a lounge simultaneously. If each person shakes hand with the other, then find the total no. of handshakes ?

Answer : C. 28

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How many groups of 6 persons can be formed from 8 men and 7 women ?

Answer : B . 5005

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A box contains 2 white balls, 3 black balls and 4 red balls. In how many ways can 3 balls be drawn from the box, if at least one black ball is to be included in the draw ?

Answer : C. 64

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There are 25 students in a class. Find the number of ways in which a committee of 3 students is to be formed ?

If 56Pr+ 6 : 54Pr + 3 = 30800 : 1 then the value of r is ?

How many can straight lines be drawn from 15 non-collinear points ?

In a meeting between two countries, each country has 12 delegates. All the delegates of one country shake hands with all delegates of the other country. Find the number of handshakes possible ?

In how many ways, the letters of the word ‘BANKING’ can be arranged ?

In how many different ways, can the letters of the word ‘INHALE’ be arranged ?

Find the value of 5P2 ?

8 men entered a lounge simultaneously. If each person shakes hand with the other, then find the total no. of handshakes ?

How many groups of 6 persons can be formed from 8 men and 7 women ?

A box contains 2 white balls, 3 black balls and 4 red balls. In how many ways can 3 balls be drawn from the box, if at least one black ball is to be included in the draw ?

Ignore errors of punctuation, if any ? Symptoms of this illness (A) that warrant a doctor visit (B) includes fever, (C) vomiting, and diarrhea, as well as the (D) loss of appetite (E) No error

What is Blacklist ?

Find the output : function modify(a,b) { Integer c,d=2 c= a*d+ b return c } Function calculate () { Integer a = 5, b = 20, c Integer d= 10 c = modify (a, b); c = c+ d Print c }

What is the output of this C code ? | Recursion Program in C | Recursion in C

Ravi and Rupali are asked to write a program to sum the rows of 2X2 matrices stored in the array A..?

QDXM : SFYN :: UIOZ : ?

The population of a village is eight thousand. If 6 % men and 10 % women are added population becomes 8600, then no of men in the village was ?

What is the output of the following pseudo code ? Int a = 456, b, c, d = 10; b = a/d; c = a-b; print c ?

Which is the Closest approximation to the product 0.3333 x 0.25 x 0.499 x 0.125 x 24 ?

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