# A book

A book contains 524 pages. If it is known that a person will select any one page between the pages numbered 125 and 384, find the probability of choosing the page numbered 252 or 253.

Result

p =  0.769 %

#### Solution: Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...): Be the first to comment! #### To solve this example are needed these knowledge from mathematics:

Would you like to compute count of combinations?

## Next similar examples:

1. One green In the container are 45 white and 15 balls. We randomly select 5 balls. What is the probability that it will be a maximum one green?
2. Cards From a set of 32 cards we randomly pull out three cards. What is the probability that it will be seven king and ace?
3. Dice We throw 10 times a play dice, what is the probability that the six will fall exactly 4 times?
4. travel agency Small travel agency offers 5 different tours at honeymoon. What is the probability that the bride and groom choose the same tour (they choose independently)?
5. Cards The player gets 8 cards of 32. What is the probability that it gets a) all 4 aces b) at least 1 ace
6. Balls From the urn in which are 7 white balls and 17 red, gradually drag 3-times without replacement. What is the probability that pulls balls are in order: red red red?
7. A pizza A pizza place offers 14 different toppings. How many different three topping pizzas can you order?
8. Trinity How many different triads can be selected from the group 43 students?
9. Fish tank A fish tank at a pet store has 8 zebra fish. In how many different ways can George choose 2 zebra fish to buy?
10. 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 5 que
11. The confectionery The confectionery sold 5 kinds of ice cream. In how many ways can I buy 3 kinds if order of ice creams does not matter?
12. Division Division has 18 members: 10 girls and 6 boys, 2 leaders. How many different patrols can be created, if one patrol is 2 boys, 3 girls and 1 leader?
13. Calculation of CN Calculate: ?
14. Theorem prove We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
15. Hearts 4 cards are chosen from a standard deck of 52 playing cards (13 hearts) with replacement. What is the probability of choosing 4 hearts in a row?
16. Count of triangles Given a square ABCD and on each side 8 internal points. Determine the number of triangles with vertices at these points.
17. Hockey Hockey match ended 8:2. How many different matches could be?