Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • Pradeep is a Section Chief for an electric utility company. The employees in his section cut down tall trees or climb poles. Pradeep recently reported the following information to the management of the utility. Out of 100 employees in my section, 55 can c

Pradeep is a Section Chief for an electric utility company. The employees in his section cut down tall trees or climb poles. Pradeep recently reported the following information to the management of the utility. Out of 100 employees in my section, 55 can cut tall trees, 50 can climb poles, 11 can do both, 6 can’t do any of the two. Is this information correct?

Answers (1)

Given: No of employees (ξ)=100

No employees who can cut trees =n(A)=55

No of employees who can climb poles =n(B)=50

No of employees who can do both =n(A∩B)=11

No of employees who can't do any of the two =n(A∪B)′=6 

 

Now,

n(A∪B)=n(A)+n(B)−n(A∩B)

=55+50−11=94

or 

n(A∪B)=ξ−n(A∪B)′

=100−6=94

Since, in both ways n(A∪B) values are same, the information given is correct.

Posted by

Satyajeet Kumar

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

JEE Main Result 2024 Live: JEE April results at jeemain.nta.ac.in likely today; cutoff, rank predictor, update
anam-khan

JEE Main 2024 session 2 final answer key out at jeemain.nta.ac.in; steps to check probable scores
anam-khan

JEE Main Result 2024 Live: Download session 2 final answer key at jeemain.nta.ac.in; rank predictor, cutoff

Latest Question