Browse by Stream
QnA
Home

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • Need explanation for: If total number id relations from A to B are 64 and the number of element in A = 2, then find the number of elements in set B.

If total number id relations from A to B are 64 and the number of element in A  = 2, then find the number of elements in set B.

  • Option 1)

    2

  • Option 2)

    3

  • Option 3)

    6

  • Option 4)

    1

 

Answers (1)

best_answer

As we have learnt,

 

Number of Relations -

If A having m elements and B having n elements, then 2^{mn}=No. of relations

-

 

 Here m = 2,

2mn = 64

22n = 64

Therefore n = 3.


Option 1)

2

Option 2)

3

Option 3)

6

Option 4)

1

Posted by

Himanshu

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

JoSAA Counselling 2025 LIVE: BTech registration starts at josaa.nic.in for IIT, NIT, IIIT admissions
anam-khan

Kota: 17-year old student from UP preparing for JEE dies of electrocution in hostel
anam-khan

CSAB 2025 counselling dates out for special, supernumerary rounds through JEE Mains

Latest Question