Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 6 (Q.No. 45)
45.
If (225)Y = (165)8 find value of Y
7
8
9
11
Answer: Option
Explanation:

(225)y => 2Y2 + 2Y + 5 = (165)8 => (117)10

2Y2 + 2Y + 5 = 117

Y2 + Y - 56 = 0

Y = 7 or Y = - 8

Y should be 7.

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