TS EAMCET Mathematics Permutations and Combinations mcq-2

TS EAMCET MATHS PRACTICE MCQ

1/10

Three vertices of a convex n sided polygon are selected.If the number of triangles that can be constructed such that none of the side of the triangle is also side of the polygon,then the polygon is a

1)Heptagon

2)Octagon

3)Nonagon

4)Decagon

2/10

There are 12 books on Algebra and Calculus in our library.The books of same subject being different.If the number of selections each of which consists of 3 books on each topic is greatest.Then the number of books of Algebra and Calculus in the library are respectively

1)3 and 9

2)4 and 8

3)5 and 7

4)6 and 6

3/10

Out of seven consonants and four vowels ,the number of words of six letters,formed by taking four consonants and two vowelsis (Assume that each ordered group of letter is a word):

1)210

2)462

3)151200

4)332640

4/10

The number of six digit numbers that can be formed from the digits 1,2,3,4,5,6,7 So that digits do not repeat and terminal digits are even is

1)144

2)72

3)288

4)720

5/10

A new flag is to be designed with six vertical strips using some or all of the colours yellow,blue,green and red then the no of ways this can be done such that no two adjacent strips have the same colour is

1)12×81

2)16×192

3)20×125

4)24×216

6/10

The number of 5 digit numbers which are divisible by 5 and each number containing the digit 5,digits being all different is equal to K(4!),the value of K is

1)84

2)168

3)188

4)208

7/10

A 5 digit number is divisible by 3 is to be formed using the digits 0,1,2,3,4,5 without repetition the total number of ways this can be done is

1)3125

2)600

3)240

4)216

8/10

The number of n digit numbers which consists of the digits 1 and 2 only if each digit is used atleast once is equal to 510 then 'n' is equal to

1)7

2)8

3)9

4)10

9/10

A rack has 5 different pair of shoes.The number of ways in which 4 shoes can be chosen from it so that these will be no complete pair is

1)1920

2)200

3)110

4)80

10/10

Number ways in which 8 people can be arranged in a line if A and B must be next to each other and C must be somewhere behind D is equal to

1)10080

2)5040

3)5050

4)10100

Result: