Top 350+ Solved Discrete Mathematics MCQ Questions Answer

Q. Which amount of postage can be formed using just 4-cent and 11-cent stamps?

a. 2

b. 5

c. 30

d. 10

Q. Suppose that P(n) is a propositional function. Determine for which positive integers n the statement P(n) must be true if: P(1) is true; for all positive integers n, if P(n) is true then P(n+2) is true.

a. p(3)

b. p(2)

c. p(4)

d. p(6)

Q. Suppose that P(n) is a propositional function. Determine for which positive integers n the statement P(n) must be true if: P(1) and P(2) is true; for all positive integers n, if P(n) and P(n+1) is true then P(n+2) is true.

a. p(1)

b. p(2)

c. p(4)

d. p(n)

Q. A polygon with 25 sides can be triangulated into

a. 23

b. 20

c. 22

d. 21

Q. How many even 4 digit whole numbers are there?

a. 1358

b. 7250

c. 4500

d. 3600

Q. In a multiple-choice question paper of 15 questions, the answers can be A, B, C or D. The number of different ways of answering the question paper are

a. 65536 x 47

b. 194536 x 45

c. 23650 x 49

d. 11287435

Q. Neela has twelve different skirts, ten different tops, eight different pairs of shoes, three different necklaces and five different bracelets. In how many ways can Neela dress up?

a. 50057

b. 14400

c. 34870

d. 56732

Q. For her English literature course, Ruchika has to choose one novel to study from a list of ten, one poem from a list of fifteen and one short story from a list of seven. How many different choices does Rachel have?

a. 34900

b. 26500

c. 12000

d. 10500

Q. The code for a safe is of the form PPPQQQQ where P is any number from 0 to 9 and Q represents the letters of the alphabet. How many codes are possible for each of the following cases? Note that the digits and letters of the alphabet can be repeated.

a. 874261140

b. 537856330

c. 549872700

d. 456976000

Q. Amit must choose a seven-digit PIN number and each digit can be chosen from 0 to 9. How many different possible PIN numbers can Amit choose?

a. 10000000

b. 9900000

c. 67285000

d. 39654900

Q. A head boy, two deputy head boys, a head girl and 3 deputy head girls must be chosen out of a student council consisting of 14 girls and 16 boys. In how many ways can they are chosen?

a. 98072

b. 27384

c. 36428

d. 44389

Q. A drawer contains 12 red and 12 blue socks, all unmatched. A person takes socks out at random in the dark. How many socks must he take out to be sure that he has at least two blue socks?

a. 18

b. 35

c. 28

d. 14

Q. When four coins are tossed simultaneously, in number of the outcomes at most two of the coins will turn up as heads.

a. 17

b. 28

c. 11

d. 43

Q. How many numbers must be selected from the set {1, 2, 3, 4} to guarantee that at least one pair of these numbers add up to 7?

a. 14

b. 5

c. 9

d. 24

Q. During a month with 30 days, a cricket team plays at least one game a day, but no more than 45 games. There must be a period of some number of consecutive days during which the team must play exactly number of games.

a. 17

b. 46 c) 124

c. d

d. 24

Top 350+ Solved Discrete Mathematics MCQ Questions Answer

From 241 to 255 of 338

Q. Which amount of postage can be formed using just 4-cent and 11-cent stamps?

Q. Suppose that P(n) is a propositional function. Determine for which positive integers n the statement P(n) must be true if: P(1) is true; for all positive integers n, if P(n) is true then P(n+2) is true.

Q. Suppose that P(n) is a propositional function. Determine for which positive integers n the statement P(n) must be true if: P(1) and P(2) is true; for all positive integers n, if P(n) and P(n+1) is true then P(n+2) is true.

Q. A polygon with 25 sides can be triangulated into

Q. How many even 4 digit whole numbers are there?

Q. In a multiple-choice question paper of 15 questions, the answers can be A, B, C or D. The number of different ways of answering the question paper are

Q. Neela has twelve different skirts, ten different tops, eight different pairs of shoes, three different necklaces and five different bracelets. In how many ways can Neela dress up?

Q. For her English literature course, Ruchika has to choose one novel to study from a list of ten, one poem from a list of fifteen and one short story from a list of seven. How many different choices does Rachel have?

Q. The code for a safe is of the form PPPQQQQ where P is any number from 0 to 9 and Q represents the letters of the alphabet. How many codes are possible for each of the following cases? Note that the digits and letters of the alphabet can be repeated.

Q. Amit must choose a seven-digit PIN number and each digit can be chosen from 0 to 9. How many different possible PIN numbers can Amit choose?

Q. A head boy, two deputy head boys, a head girl and 3 deputy head girls must be chosen out of a student council consisting of 14 girls and 16 boys. In how many ways can they are chosen?

Q. A drawer contains 12 red and 12 blue socks, all unmatched. A person takes socks out at random in the dark. How many socks must he take out to be sure that he has at least two blue socks?

Q. When four coins are tossed simultaneously, in number of the outcomes at most two of the coins will turn up as heads.

Q. How many numbers must be selected from the set {1, 2, 3, 4} to guarantee that at least one pair of these numbers add up to 7?

Q. During a month with 30 days, a cricket team plays at least one game a day, but no more than 45 games. There must be a period of some number of consecutive days during which the team must play exactly number of games.

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