I

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

August 17, 2021

1 Min Read

0 9

August 17, 2021

1 Min Read

0 9

Answer : B. 41

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I

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 ?

August 17, 2021

1 Min Read

0 76

August 17, 2021

1 Min Read

0 76

Answer : B . 144

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F

Find the value of 5P2 ?

August 17, 2021

1 Min Read

0 299

August 17, 2021

1 Min Read

0 299

Answer : C . 20

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I

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

August 17, 2021

1 Min Read

0 20

August 17, 2021

1 Min Read

0 20

Answer : C. 120960

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A

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 ?

August 17, 2021

1 Min Read

0 32

August 17, 2021

1 Min Read

0 32

Answer : B. 24

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E

Evaluate permutation equation 59P3 ?

August 17, 2021

1 Min Read

0 45

August 17, 2021

1 Min Read

0 45

Answer : C. 195054

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O

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

August 17, 2021

1 Min Read

0 27

August 17, 2021

1 Min Read

0 27

Answer : C. 25200

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H

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

August 17, 2021

1 Min Read

0 102

August 17, 2021

1 Min Read

0 102

Answer : D. 360

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