JSCE Mathematics 2024 Objective — Question 68
Question 68 of 80 from the Junior Secondary Certificate Examination (JSCE) Mathematics 2024 Objective paper, with the correct answer and a full explanation.
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Evaluate 2101(three) in base ten and hence calculate its conversion to base four.
- A. 1000(four)Correct
- B. 1010(four)
- C. 1002(four)
- D. 121(four)
Explanation
2101(three) = 2 x 27 + 1 x 9 + 0 + 1 = 64. 64 = 1 x 4^3, so it is 1000(four).
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