Number Systems
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Q. A number leaves a remainder of 1 when divided by 3 and a remainder of 2 when divided by 5. What is the smallest positive integer that satisfies these conditions? (2023)
Q. A number leaves a remainder of 1 when divided by 5 and a remainder of 2 when divided by 7. What is the smallest such number?
Q. A number leaves a remainder of 1 when divided by 5 and a remainder of 2 when divided by 3. What is the smallest positive integer that satisfies these conditions? (2023)
Q. A number leaves a remainder of 2 when divided by 5. Which of the following numbers is NOT possible?
Q. A number leaves a remainder of 4 when divided by 10 and a remainder of 2 when divided by 3. What is the smallest positive integer that satisfies these conditions? (2023)
Q. A number leaves a remainder of 4 when divided by 6. If this number is multiplied by 3, what will be the remainder when the result is divided by 6? (2023)
Q. A number leaves a remainder of 4 when divided by 9 and a remainder of 2 when divided by 5. What is the smallest such number? (2023)
Q. A number leaves a remainder of 6 when divided by 11. If this number is multiplied by 3, what will be the new remainder when divided by 11?
Q. A number leaves a remainder of 7 when divided by 10. If this number is decreased by 3, what will be the new remainder when divided by 10? (2023)
Q. A number leaves a remainder of 7 when divided by 11. If we subtract 3 from this number, what will be the new remainder when divided by 11? (2023)
Q. A student divides a number by 6 and gets a remainder of 4. If he divides the same number by 3, what will be the remainder? (2023)
Q. A teacher has 36 pencils and 48 erasers. What is the maximum number of students that can receive the same number of pencils and erasers? (2023)
Q. A teacher has 48 pencils and 60 erasers. She wants to distribute them equally among students. What is the maximum number of students she can distribute to? (2023)
Q. A teacher has 48 pencils and 60 erasers. What is the largest number of students that can receive the same number of pencils and erasers? (2023)
Q. Arrange the following numbers in ascending order based on their factors: 15, 12, 18, 10. (2023)
Q. For a number to be divisible by 10, which of the following must be true?
Q. For a number to be divisible by 11, which of the following must be true?
Q. For a number to be divisible by 8, what must be true about its last three digits?
Q. How does the author illustrate the concept of digital sum? (2023)
Q. How does the author structure the argument about digital sum?
Q. How does the author support the claim about the efficiency of digital sum? (2023)
Q. How does the author support the claims made about digital sum? (2023)
Q. Identify the number that is not divisible by 15.
Q. Identify the number that is not divisible by 3.
Q. If '100' in base-2 is equal to '4' in decimal, what is '110' in base-2?
Q. If '1010' in binary is converted to decimal, what is the result?
Q. If '1010' in binary is equal to 'A' in hexadecimal, what is the decimal value of 'A'?
Q. If 'A' in a certain number system represents 10, what is the decimal equivalent of 'B' if 'B' is one more than 'A'?
Q. If 'A' in a hexadecimal system represents 10, what is the sum of 'A' and '5' in decimal?
Q. If 'A' in base-7 is equal to 50 in decimal, what is the value of 'A'?