For what value of ‘K’ in 7n=K, ‘n’ will be a Natural number?

  1. 543
  2. 839
  3. 1983
  4. 2401

 

Anurag Mishra Professor Asked on 17th December 2015 in Maths.
Add Comment
1 Answer(s)

Answer:  (4) 2401 

Solution:-
7^n = K

The value of K will be multiple of 7 and only  option (4) 2401 is  multiple  of 7.
Then factors of 2401 = 7 x 7 x 7 x 7 
 = 7^4
7^4 = 2401

Then the value of K is 2401. 

Hence, the correct answer is option (4) 2401. 

Anurag Mishra Professor Answered on 17th December 2015.
Add Comment

Your Answer

By posting your answer, you agree to the privacy policy and terms of service.