English
Tamil Nadu Board of Secondary EducationHSC Science Class 11

Choose the correct alternative:In an examination there are three multiple choice questions and each question has 5 choices . Number of ways in which a student can fail to get all answer correct i - Mathematics

Advertisements
Advertisements

Question

Choose the correct alternative:
In an examination there are three multiple choice questions and each question has 5 choices. Number of ways in which a student can fail to get all answer correct i

Options

  • 125

  • 124

  • 64

  • 63

MCQ

Solution

124

shaalaa.com
  Is there an error in this question or solution?
Chapter 4: Combinatorics and Mathematical Induction - Exercise 4.5 [Page 197]

APPEARS IN

Samacheer Kalvi Mathematics - Volume 1 and 2 [English] Class 11 TN Board
Chapter 4 Combinatorics and Mathematical Induction
Exercise 4.5 | Q 2 | Page 197

RELATED QUESTIONS

How many 3-digit numbers can be formed from the digits 1, 2, 3, 4 and 5 assuming that repetition of the digits is allowed?


A letter lock contains 3 rings, each ring containing 5 different letters. Determine the maximum number of false trials that can be made before the lock is opened?


If numbers are formed using digits 2, 3, 4, 5, 6 without repetition, how many of them will exceed 400?


How many numbers formed with the digits 0, 1, 2, 5, 7, 8 will fall between 13 and 1000 if digits can be repeated?


Select the correct answer from the given alternatives.

A college offers 5 courses in the morning and 3 in the evening. The number of ways a student can select exactly one course, either in the morning or in the evening


How many words can be formed by writing letters in the word CROWN in different order?


A person went to a restaurant for dinner. In the menu card, the person saw 10 Indian and 7 Chinese food items. In how many ways the person can select either an Indian or a Chinese food?


There are 3 types of toy car and 2 types of toy train available in a shop. Find the number of ways a baby can buy a toy car and a toy train?


How many two-digit numbers can be formed using 1, 2, 3, 4, 5 without repetition of digits?


Four children are running a race:
In how many ways can the first two places be filled?


Count the number of three-digit numbers which can be formed from the digits 2, 4, 6, 8 if repetitions of digits is not allowed


How many three-digit numbers are there with 3 in the unit place?
with repetition


How many three-digit odd numbers can be formed by using the digits 0, 1, 2, 3, 4, 5? if the repetition of digits is not allowed


How many strings can be formed using the letters of the word LOTUS if the word either starts with L or ends with S?


Evaluate `("n"!)/("r"!("n" - "r")!)` when n = 10, r = 3


Choose the correct alternative:
The number of five digit telephone numbers having at least one of their digits repeated i


In a class, there are 27 boys and 14 girls. The teacher wants to select 1 boy and 1 girl to represent the class for a function. In how many ways can the teacher make this selection?


There are four bus routes between A and B; and three bus routes between B and C. A man can travel round-trip in number of ways by bus from A to C via B. If he does not want to use a bus route more than once, in how many ways can he make round trip?


The number of six-digit numbers, all digits of which are odd is ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×