MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Discrete Mathematics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
How many positive integers less than or equal to 100 are divisible by 2, 4 or 5? |
| A. | 12.3 |
| B. | 87.2 |
| C. | 45.3 |
| D. | 78.2 |
| Answer» E. | |
| 2. |
There is a class of 40 students out of which 16 are girls. There are 27 students who are right-handed. How many minimum numbers of girls who are left-handed in this class? |
| A. | 17 |
| B. | 56 |
| C. | 23 |
| D. | 3 |
| Answer» E. | |
| 3. |
In a Press Conference, there are 450 foreign journalists. 275 people can speak German, 250 people can speak English, 200 people can speak Chinese and 260 people can speak Japanese. Find the maximum number of foreigners who cannot speak at least one language. |
| A. | 401 |
| B. | 129 |
| C. | 324 |
| D. | 415 |
| Answer» E. | |
| 4. |
In a secondary examination, 75% of the students have passed in History and 65% in Mathematics, while 50% passed in both History and Mathematics. If 35 candidates failed in both the subjects, what is the total number of candidates sit for that exam? |
| A. | 658 |
| B. | 398 |
| C. | 764 |
| D. | 350 |
| Answer» E. | |
| 5. |
If spinner has 3 equal sectors colored yellow, blue and red, then the probability of landing on red or yellow after spinning this spinner is _______ |
| A. | \(\frac{2}{3}\) |
| B. | \(\frac{4}{7}\) |
| C. | \(\frac{6}{17}\) |
| D. | \(\frac{23}{47}\) |
| Answer» B. \(\frac{4}{7}\) | |
| 6. |
There are 24 red marbles in a bag 68 marbles, and 8 of those marbles are both red and white striped. 27 marbles are white striped and of those marbles, the same 8 marbles would be both red and white striped). Find the probability of drawing out a marble from the bag that is either red or white striped. |
| A. | \(\frac{12}{35}\) |
| B. | \(\frac{43}{68}\) |
| C. | \(\frac{26}{68}\) |
| D. | . Find the probability of drawing out a marble from the bag that is either red or white striped.a) \(\frac{12}{35}\) b) \(\frac{43}{68}\) c) \(\frac{26}{68}\) d) \(\frac{32}{55}\) |
| Answer» C. \(\frac{26}{68}\) | |
| 7. |
A number is selected from the first 20 natural numbers. Find the probability that it would be divisible by 3 or 7? |
| A. | \(\frac{19}{46}\) |
| B. | \(\frac{24}{67}\) |
| C. | \(\frac{12}{37}\) |
| D. | \(\frac{7}{20}\) |
| Answer» E. | |
| 8. |
There are a total of 50 distinct books on a shelf such as 20 math books, 16 physics books, and 14 chemistry books. Find is the probability of getting a book that is not a chemistry book or not a physics book. |
| A. | \(\frac{4}{17}\) |
| B. | \(\frac{43}{50}\) |
| C. | \(\frac{12}{31}\) |
| D. | 1 |
| Answer» E. | |
| 9. |
If a fair 15-sided dice is rolled, then is the probability that the roll is an odd number or prime number or both? |
| A. | \(\frac{3}{20}\) |
| B. | \(\frac{4}{19}\) |
| C. | \(\frac{9}{20}\) |
| D. | \(\frac{17}{20}\) |
| Answer» D. \(\frac{17}{20}\) | |
| 10. |
Neha has 4 yellow t-shirts, 6 black t-shirts, and 2 blue t-shirts to choose from for her outfit today. She chooses a t-shirt randomly with each t-shirt equally likely to be chosen. Find the probability that a black or blue t-shirt is chosen for the outfit. |
| A. | \(\frac{8}{13}\) |
| B. | \(\frac{5}{6}\) |
| C. | \(\frac{1}{2}\) |
| D. | \(\frac{7}{12}\) |
| Answer» D. \(\frac{7}{12}\) | |