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How many binary digits can one hexadecimal digit represent?
4 digits - representing 16 integers.
How many Numbers between 400 and 600 begin with or end with digit 5?
To find the numbers between 400 and 600 that either begin or end with the digit 5, we can break it down into two parts. First, let's find the numbers that begin with 5: There are 10 numbers between 500 and 599 that start with 5. Next, let's find the numbers that end with 5: There are 10 numbers between 405 and 595 that end with 5. Adding these two sets together gives us a total of 20 numbers between 400 and 600 that either begin or end with the digit 5.
How many 2 digit prime numbers are there whose unit digit is greater its tens digit?
Ten.
Why do you use octal and hexadecimal number system as shortcut notation?
Memory dump which are in binary numbers would have many numbers of 0s and 1s. working with these numbers would be very difficult. Hence two number system hexadecimal and octal number system is used because these numbers are inter convertible with binary numbers by the concept of bits.
How many two digit prime numbers have a units digit of 7 and what are the prime numbers?
17, 37, 47, 67, 97
