A particular number is written as 132 in radix-4 representation. The same…
2023
A particular number is written as 132 in radix-4 representation. The same number in radix-5 representation is ________.
Answer: 110 — Concept: In a positional (radix) number system, a number with digits dk…d1d0 in base b has decimal value Σ di × bi. To express a decimal value in a different…
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Correct answer: 110
Concept: In a positional (radix) number system, a number with digits dk…d1d0 in base b has decimal value Σ di × bi. To express a decimal value in a different base c, divide the value repeatedly by c and read the successive remainders from last to first.
Applying to this question:
Expand 132 (radix-4) by place value: 1 × 42 + 3 × 41 + 2 × 40 = 16 + 12 + 2 = 30 in decimal.
Convert 30 (decimal) to radix-5 by repeated division: 30 ÷ 5 = 6 remainder 0; 6 ÷ 5 = 1 remainder 1; 1 ÷ 5 = 0 remainder 1.
Reading the remainders from the last division to the first gives the radix-5 digits 1, 1, 0 — that is, 110.
Cross-check: Converting 110 (radix-5) back to decimal: 1 × 52 + 1 × 51 + 0 × 50 = 25 + 5 + 0 = 30, matching the decimal value obtained from 132 (radix-4) — confirming the conversion. (An option such as 303 does not correspond to any correct base-4-to-base-5 conversion of this value; 303 in radix-5 equals 3×25 + 0×5 + 3 = 78 in decimal, not 30.)
Answer: 110 (radix-5).