Advertisements
Advertisements
प्रश्न
A student appears in an objective test which contain 5 multiple choice questions. Each question has four choices out of which one correct answer.
What is the maximum number of different answers can the students give?
Advertisements
उत्तर
Selecting a correct answer from the 4 answers can be done in 4 ways.
Total number of questions = 5
So they can be answered in 45 ways
APPEARS IN
संबंधित प्रश्न
Is 3! + 4! = 7!?
Find r if `""^5P_r = ""^6P_(r-1)`
Which of the following are true:
(2 +3)! = 2! + 3!
In how many ways can three jobs I, II and III be assigned to three persons A, B and C if one person is assigned only one job and all are capable of doing each job?
How many natural numbers not exceeding 4321 can be formed with the digits 1, 2, 3 and 4, if the digits can repeat?
In how many ways can 4 letters be posted in 5 letter boxes?
Write the number of all possible words that can be formed using the letters of the word 'MATHEMATICS'.
The number of different ways in which 8 persons can stand in a row so that between two particular persons A and B there are always two persons, is
If `""^(("n" – 1))"P"_3 : ""^"n""P"_4` = 1 : 10 find n
Suppose 8 people enter an event in a swimming meet. In how many ways could the gold, silver and bronze prizes be awarded?
A test consists of 10 multiple choice questions. In how many ways can the test be answered if each question has four choices?
8 women and 6 men are standing in a line. How many arrangements are possible if any individual can stand in any position?
Each of the digits 1, 1, 2, 3, 3 and 4 is written on a separate card. The six cards are then laid out in a row to form a 6-digit number. How many of these 6-digit numbers are divisible by 4?
Choose the correct alternative:
If Pr stands for rPr then the sum of the series 1 + P1 + 2P2 + 3P3 + · · · + nPn is
Three married couples are to be seated in a row having six seats in a cinema hall. If spouses are to be seated next to each other, in how many ways can they be seated? Find also the number of ways of their seating if all the ladies sit together.
Find the number of permutations of n distinct things taken r together, in which 3 particular things must occur together.
Find the number of different words that can be formed from the letters of the word ‘TRIANGLE’ so that no vowels are together
The number of 5-digit telephone numbers having atleast one of their digits repeated is ______.
The total number of 9 digit numbers which have all different digits is ______.
The number of permutations of n different objects, taken r at a line, when repetitions are allowed, is ______.
