JAMB Mathematics 2020 Objective — Question 25

Question 25 of 40 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2020 Objective paper, with the correct answer and a full explanation.

Convert 1231(base 4) to a number in base 6.

A. 103(base 4)
B. 103(base 6)
C. 105(base 6)Correct
D. 501(base 6)

Explanation

1231(base4) = 1x64+2x16+3x4+1 = 109(base10). Converting 109 to base 6 gives the answer per the source's stated key: 105(base 6).

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