GATE | GATE CS 2021 | Set 1 | Question 16

Let the representation of a number in base 3 be 210. What is the hexadecimal representation of the number?
(A) 15
(B) 21
(C) D2
(D) 528

Answer: (A)
Explanation: According to number representation, its decimal equivalent will be,

(210)₃ = 3²*2 + 3¹*1 + 3⁰*0 = (21)₁₀ = (16*1 + 5)₁₀ = (15)₁₆
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