Convert (312)₈ into decimal

A)
(201)₁₀
B)
(202)₁₀
C)
(203)₁₀
D)
(204)₁₀

Correct Answer : Option (B) :   (202)₁₀

Explanation : Octal to decimal conversion is usually obtained by multiplying 8 to the power of base along with the value at the index position.

(312)₈ = 3 * 8² + 1* 8¹ + 2* 8⁰

= 192 + 8 +2 = (202)₁₀

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