Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • In an examination, there are three multiple choice questions and each question has 4 choices. Number of sequences in which a student can fail to get all answers correct is<div class='qna-o

In an examination, there are three multiple choice questions and each question has 4 choices. Number of sequences in which a student can fail to get all answers correct is

Option: 1

11


Option: 2

15


Option: 3

80


Option: 4

63


Answers (1)

best_answer

No. of ways of attempting I , II,III questions are 4 each.

Total no.of ways =4 \cdot 4 \cdot 4=64

No.of ways getting all correct answer =1 \cdot 1 \cdot 1=1

\therefore No.of ways of not getting all answers correct =64-1=63

 

Posted by

Ritika Jonwal

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

BTech aspirant from north-east or UT? Apply for CSAB NEUT counselling 2025 today
anam-khan

JoSAA round 2 cut-off 2025 out; BTech closing ranks for top engineering courses at IITs
anam-khan

Goa Engineering Admission 2025: 1,415 eligible for BE seats; merit list on June 27

Latest Question