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Previous year question hub

Number Representations - Digital Circuits - Electronics & Communication Engineering Previous Year Questions

Practice Number Representations - Digital Circuits - Electronics & Communication Engineering previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

6Papers
6Years
7Questions
1Topics

Number Representations question pattern

Every graph below is calculated only from this selection.

Questions by year

Compare question counts across years.

Difficulty distribution

How the classified questions are distributed by difficulty.

Easy 7 100%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

MCQ 6 85.7%
Numerical Answer Type (NAT) 1 14.3%

Subject weightage

Top subjects by unique question coverage.

Electronics & Communication Engineering
7 Qs

Most asked topics

Top topics across the included previous year papers.

Digital Circuits
7 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Number Representations
7 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

Electronics and Communication Engineering (EC) 2026
2 Qs
Electronics & Communication Engineering (EC) 2024
1 Qs
Electronics & Communication Engineering (EC) 2021
1 Qs
Electronics & Communication Engineering (EC) 2020
1 Qs
Electronics & Communication Engineering (EC) 2008
1 Qs
Electronics & Communication Engineering (EC) 2007
1 Qs

Included previous year papers

Newest papers appear first. Search these papers or sort by year and name.

Paper nameYearPDFAttempt
Electronics and Communication Engineering (EC) 20262026
2 questions in this view
2026
Electronics & Communication Engineering (EC) 20242024
1 questions in this view
2024
Electronics & Communication Engineering (EC) 20212021
1 questions in this view
2021
Electronics & Communication Engineering (EC) 20202020
1 questions in this view
2020
Electronics & Communication Engineering (EC) 20082008
1 questions in this view
2008
Electronics & Communication Engineering (EC) 20072007
1 questions in this view
2007

All Number Representations previous year questions

Practice every matching question in batches of 20, with every available option.

1
2007 · Electronics & Communication Engineering · Digital Circuits · Number Representations
Electronics & Communication Engineering (EC) 2007
X = 01110 and Y = 11001 are two 5-bit binary numbers represented in two’s complement format. The sum of X and Y represented in two’s complement format using 6 bits is
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2
2008 · Electronics & Communication Engineering · Digital Circuits · Number Representations
Electronics & Communication Engineering (EC) 2008
The two numbers represented in signed 2's complement form are
P = 11101101 and Q = 11100110. If Q is subtracted from P, the value obtained in signed 2's complement form is
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3
2020 · Electronics & Communication Engineering · Digital Circuits · Number Representations
Electronics & Communication Engineering (EC) 2020
P, Q, and R are the decimal integers corresponding to the 4-bit binary number 1100 considered in signed magnitude, 1's complement, and 2's complement representations, respectively. The 6-bit 2's complement representation of (P + Q + R) is
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4
2021 · Electronics & Communication Engineering · Digital Circuits · Number Representations
Electronics & Communication Engineering (EC) 2021

If (1235)x = (3033)y, where x and y indicate the bases of the corresponding numbers, then

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5
2024 · Electronics & Communication Engineering · Digital Circuits · Number Representations
Electronics & Communication Engineering (EC) 2024
In a number system of base \( r \), the equation \( x^2 - 12x + 37 = 0 \) has \( x = 8 \) as one of its solutions. The value of \( r \) is ________.
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6
2026 · Electronics & Communication Engineering · Digital Circuits · Number Representations
Electronics and Communication Engineering (EC) 2026
The address of the first location of a 256 kilo byte (KB) memory is \( (2500)_H \).
Choose the correct address of the last location of the memory.
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7
2026 · Electronics & Communication Engineering · Digital Circuits · Number Representations
Electronics and Communication Engineering (EC) 2026
What is the 10's complement of (47)_{10}?
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