# A student

A student is to answer 8 out of 10 questions on the exam.

a) find the number n of ways the student can choose 8 out of 10 questions

b) find n if the student must answer the first three questions

c) How many if he must answer at least 4 of the first five questions?

a) find the number n of ways the student can choose 8 out of 10 questions

b) find n if the student must answer the first three questions

c) How many if he must answer at least 4 of the first five questions?

## Correct answer:

Tips for related online calculators

Would you like to compute the count of combinations?

### You need to know the following knowledge to solve this word math problem:

## Related math problems and questions:

- Test

The teacher prepared a test with ten questions. The student can choose one correct answer from the four (A, B, C, D). The student did not get a written exam at all. What is the probability that: a) He answers half correctly. b) He answers all correctly. c - Probability 80860

During the exam, the student takes 3 questions out of 20. He is ready for 14 of them. Find the probability that he draws at least one that he knows. - Probability 80858

During the exam, the student takes 3 questions out of 30. He is ready for 20 of them. Find the probability that he draws at most 2 that he knows. - Dishes

Out of 5 different dishes, the HOD is to test at least three different dishes before scoring the students. How many ways can he choose the dishes?

- Six questions test

There are six questions in the test. There are three answers to each - only one is correct. To take the exam, students must answer at least four questions correctly. Alan didn't learn, so he circled the answers only by guessing. What is the probability th - Probability 80857

During the exam, the student answers 4 questions out of 25. He is ready for 20 of them. Find the probability that he draws exactly one that he does not know. - Probability 69914

During the exam, each student receives 30 different questions, from which he chooses 3 at random. To pass the exam, he needs to be able to answer two correctly. What is the probability that a student will pass if he mastered 70% of the questions (70% of t