Question 1 A room safe at a hotel requires users to set a 4 digit code, offering them the numbers 1 through 7. If a thief walks in, how many codes Incorrect must he be willing to try to guarantee gaining access to the safe's content? Mark 0.00 out of 1.00 Answer: 35 X Flag question The correct answer is: 2401 Question 2 How many ways are there to distribute 12 (identical) doughnuts to four children? Incorrect Mark 0.00 out of Answer: 165 X 1.00 Flag question The correct answer is: 1365Question 3 At the beginning of the summer holidays, Petra borrowed four books from the library. How many orders in which she could gradually Correct read them? Mark 1.00 out of 1.00 Answer: 24 Flag question The correct answer is: 24 Question 4 How many ways are there for empty seats to be distributed in a classroom with 20 seats, after 16 students to find their seat? Incorrect Mark 0.00 out of 1.00 Answer: 24 Flag question The correct answer is: 4845Question 5 We have six wagons, two white, two blue, and two red. We assemble trains from them, wagons of the same color are exactly the same, so Incorrect if we change only two white wagons on a train, it's still the same train, because I don't know any different. How many different trains with Mark 0.00 out of six wagons can we assemble? 1.00 Flag question Answer: 30 X The correct answer is: 90 Question 6 Each letter in STRESSED is printed on identical cards, one letter per card, and assembled in random order. What is the probability that Incorrect the cards spell DESSERTS when assembled? Express your answer in per cent and round your answer to two digits after the decimal. Mark 0.00 out of 1.00 Answer: 6720 Flag question The correct answer is: 0.03