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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In how many different ways the letters of the word ‘MATHEMATICS’ can be arranged so that the vowels always come together ?

Answer : C. 120960

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A box contains 4 red, 3 white and 2 blue balls. Three balls are drawn at random. Find out the number of ways of selecting the balls of different colours ?

Answer : B. 24

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How many words can be formed from the letters of the word “AFTER”, so that the vowels never come together ?

Answer : C. 72

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Evaluate permutation equation 59P3 ?

Answer : C. 195054

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How many 3-digit numbers can be formed from the digits 2, 3, 5, 6, 7 and 9, which are divisible by 5 and none of the digits is repeated ?

Answer : D. 20

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Out of 7 consonants and 4 vowels, how many words of 3 consonants and 2 vowels can be formed ?

Answer : C. 25200

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In how many ways, a group of 3 boys and 2 girls can be formed out of a total of 4 boys and 4 girls ?

Answer : D. 24

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How many ways the letters of the word ‘ARMOUR’ can be arranged ?

Answer : D. 360

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In how many possible ways can you write 1800 as a product of 3 positive integers a, b, c ?

Answer : B. 360

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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 ?

In how many different ways the letters of the word ‘MATHEMATICS’ can be arranged so that the vowels always come together ?

A box contains 4 red, 3 white and 2 blue balls. Three balls are drawn at random. Find out the number of ways of selecting the balls of different colours ?

How many words can be formed from the letters of the word “AFTER”, so that the vowels never come together ?

Evaluate permutation equation 59P3 ?

How many 3-digit numbers can be formed from the digits 2, 3, 5, 6, 7 and 9, which are divisible by 5 and none of the digits is repeated ?

Out of 7 consonants and 4 vowels, how many words of 3 consonants and 2 vowels can be formed ?

In how many ways, a group of 3 boys and 2 girls can be formed out of a total of 4 boys and 4 girls ?

How many ways the letters of the word ‘ARMOUR’ can be arranged ?

In how many possible ways can you write 1800 as a product of 3 positive integers a, b, c ?

What are the different types of database management systems ?

What is a Database ?

What is a primary key ?

What is Normalization in SQL ?

What is SQL ?

QDXM : SFYN :: UIOZ : ?

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

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 ?

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

Jaya Brought a worth Rs 3,50,000 four years ago. If the value of the car is depreciates over time at fixed rate of 10% per annum then what willl be present worth of car ?

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