alleryAdding binary 101 and 11 gives which binary result?
- 1000
- 1010
- 111
- 110
Show answer and solution
Correct answer: A. 1000
Five plus three is eight, and eight is written 1000 in binary.
RRB NTPC Basics of Computers and Computer Applications — practice questions — page 3
Explore 73 free Basics of Computers and Computer Applications questions in RRB NTPC General Awareness. Open each question or exercise to read its content, reference answers and available explanation.
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Adding binary 101 and 11 gives which binary result?Read the answer and worked solution →Decimal 7 is written in binary as which number?Read the answer and worked solution →In repeated division by two, the first remainder is which bit?Read the answer and worked solution →In a binary number, what does the rightmost bit represent?Read the answer and worked solution →How is the number thirty-two written in base 2?Read the answer and worked solution →Which computer component is commonly referred to as the 'brain' of the computer?Read the answer and worked solution →What type of computer memory is RAM (Random Access Memory)?Read the answer and worked solution →Which keyboard shortcut is used to copy selected content in Windows OS?Read the answer and worked solution →One kibibyte (KiB) equals how many bytes?Read the answer and worked solution →Which of the following is a prominent open-source operating system?Read the answer and worked solution →RRB NTPC · Core Computing FoundationsRead the answer and worked solution →RRB NTPC · Pioneers of ComputingRead the answer and worked solution →RRB NTPC · OS and Architecture TermsRead the answer and worked solution →
Worked practice questions
Decimal 7 is written in binary as which number?
- 110
- 111
- 1000
- 101
Show answer and solution
Correct answer: B. 111
7 is 4 + 2 + 1, so all three lowest bits are set.
In repeated division by two, the first remainder is which bit?
- Leading carry bit
- Least significant bit
- Middle parity bit
- Overflow flag bit
Show answer and solution
Correct answer: B. Least significant bit
The first remainder becomes the rightmost digit, and later remainders fill the higher places.
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