Table of Contents
How many single digit numbers are there?
Typically, there are ten digits in the decimal number system, starting from 0 and counting up to 9. In the decimal number system, the smallest one digit number is 1. 9 is the highest one digit number. Therefore to answer the question, how many one digit numbers are there, there are ten one digit numbers including 0.
How many integer numbers between 0 and 9999 have exactly one digit 1 and exactly one digit 3?
Hence the number of integers between 0 and 9999 that have exactly one digit 1 and exactly one digit 3 is 4⋅3⋅8⋅8=768.
How many numbers exactly have 2 digit?
90
The total number of two digit numbers is 90. From 1 to 99 there are 99 numbers, out of which there are 9 one-digit numbers, i.e., 1, 2, 3, 4, 5, 6, 7, 8 and 9. If one digit numbers are subtracted from 99 we get 90 two-digit numbers.
How many integers lie between 1 and 9999 which are divisible by 6 and 9 but not 17?
Numbers which are divisible by both 6 and 9 means the numbers which are divisible by 18. The numbers which are multiple of 17 must be subtracted. There are 32 multiples of 17 up to 554. So, the total numbers among these 554 which are divisible by 17 are 32.
How many integers between 1 and 9999 have no repeated digits how many have at least one repeated digit?
The number of integers from 1 to 9 with no repeated digits is 9. Two digit numbers are from 10 to 99. In tens place, there are 1 to 9 digits. In one’s place, there are 0 to 9 digits.
How many number exactly have 4 digits?
9000 four digit numbers
FOUR – DIGIT NUMBERS are the numbers that have four digits, i.e. they have ones, tens, hundreds and thousands places. In fact, to find the number of numbers between any two given numbers, we use the same formula. Therefore, there are 9000 four digit numbers in all. Hence, the answer of this question is (c) 9000.
How many numbers exactly have 3 digit number?
900
In the tens place and the one’s place, there can be any digit from 0-9. There is a possibility of 10 digits in the hundredth place and 10 digits in the unit’s place. Thus, there are 9 × 10 × 10 = 900 three-digit numbers in all. Therefore there are 900 three-digit numbers in all.