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ISRO | ISRO CS 2008 | Question 13
  • Last Updated : 20 Nov, 2018

If N2 = (7601)8 where N is a positive integer, then the value of N is
(A) (241)5
(B) (143)6
(C) (165)7
(D) (39)16


Answer: (B)

Explanation: N2 = (7601)8
N2 = 7*8*8*8 + 6*8*8 + 0 + 1*8
N2 = 3969
N = (63)10

Now, (241)5 = 2*5*5 + 4*5 + 1 = 71
Option (A) is incorrect.

(143)6 = 1*6*6 + 4*6 + 3 = 63
Option (B) is correct.

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