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Number System Questions for CAT with Answers PDF

This EduRev document offers 10 Multiple Choice Questions (MCQs) from the topic Number System (Level - 1). These questions are of Level - 1 difficulty and will assist you in the preparation of CAT & other MBA exams. You can practice/attempt these CAT Multiple Choice Questions (MCQs) and check the explanations for a better understanding of the topic. 

Question for Practice Questions Level 1: Number System - 1
Try yourself:The last digit of the number obtained by multiplying the numbers 81 × 82 × 83 × 84 × 85 × 86 × 87 × 88 × 89 will be
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Question for Practice Questions Level 1: Number System - 1
Try yourself:When we multiply a certain two-digit number by the sum of its digits, 405 is achieved. If you multiply the number written in reverse order of the same digits by the sum of the digits, we get 486. Find the number.
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Question for Practice Questions Level 1: Number System - 1
Try yourself:The difference between two numbers is 48 and the difference between arithmetic mean and their geometric mean is 18. Then, the greater of two numbers is:
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Question for Practice Questions Level 1: Number System - 1
Try yourself:If 381A is divisible by 9, find the value of smallest natural number A.
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Question for Practice Questions Level 1: Number System - 1
Try yourself:Find the ratio between the LCM and HCF of 5, 15 and 20.
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Question for Practice Questions Level 1: Number System - 1
Try yourself:If the number A is even, which of the following will be true?
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Question for Practice Questions Level 1: Number System - 1
Try yourself:A number 15B is divisible by 6. Which of these will be true about the positive integer B?
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Question for Practice Questions Level 1: Number System - 1
Try yourself:Find the units digit of the expression 256251 + 36528 + 7354.
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Question for Practice Questions Level 1: Number System - 1
Try yourself:Find the units digit of the expression 111 + 122 + 133 + 144 + 155 + 166.
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Question for Practice Questions Level 1: Number System - 1
Try yourself:Find the number of zeroes at the end of 1090!
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FAQs on Number System Questions for CAT with Answers PDF

1. What is the number system?
Ans. The number system is a way of representing numbers using a set of symbols or digits. It includes various systems such as the decimal system (base 10), binary system (base 2), octal system (base 8), and hexadecimal system (base 16).
2. How does the decimal system work?
Ans. The decimal system, which is the most commonly used number system, is based on the number 10. It uses 10 different digits (0-9) to represent all numbers. Each position in a decimal number represents a power of 10, with the rightmost digit representing the ones place, the second rightmost digit representing the tens place, and so on.
3. What is the binary system?
Ans. The binary system is a number system that uses only two digits, 0 and 1. It is commonly used in computer systems because it can easily represent the on and off states of electronic devices. Each position in a binary number represents a power of 2, with the rightmost digit representing the ones place, the second rightmost digit representing the twos place, and so on.
4. How do you convert a decimal number to a binary number?
Ans. To convert a decimal number to a binary number, you can use the process of repeated division by 2. Start by dividing the decimal number by 2 and writing down the remainder. Then, divide the quotient obtained by 2 and write down the remainder again. Continue this process until the quotient becomes 0. The binary number is obtained by writing down the remainders in reverse order.
5. What is the hexadecimal system used for?
Ans. The hexadecimal system is a number system that uses 16 different digits: 0-9 and A-F. It is commonly used in computer programming and digital systems because it can represent large numbers in a more compact form. It is also used to represent colors in web design and graphics. Each position in a hexadecimal number represents a power of 16, with the rightmost digit representing the ones place, the second rightmost digit representing the sixteens place, and so on.
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