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How many palindromes between 1000 and 9999 are divisible by 9?
think I suppost to know.
How many 4-digit positive integers are there?
from 1000 to 9999, ie 9999 - 999 = 9000
How many integers with distinct digits are there between 1000 and 9999 such that the absolute value of the difference between the first and the last digit is 1?
952 of them.
How many integers with distinct digits are there between 1000 and 9999 such that the absolute value of the difference between the first and the last digit is 3?
An infinite amount
How many integers between 1000 and 9999 are even digits?
Oh, what a lovely question! To find the number of integers between 1000 and 9999 with all even digits, we can think of each digit place (ones, tens, hundreds, thousands) independently. In each place, we have 5 even digits to choose from (0, 2, 4, 6, 8). So, we have 5 choices for each of the 4 places, giving us a total of 5 x 5 x 5 x 5 = 625 integers with all even digits. Happy counting!
How many palindromes between 1000 and 9999 inclusive are divisible by 9?
There are 10 palindromes divisible by 9 between 1000 and 9999.
How many integers between 1000 and 9999 are divisible by 5 or 7?
There are 2828 integers between 1000 and 9999.
How many palindromes between 1000 and 9999 are divisible by 9?
think I suppost to know.
How many odd integers are there from 1000 through 9999?
From 1000 to 9999 (inclusive) there are 9999 - 1000 + 1 = 9000 integers. Half of which are even, half of which are odd. So the answer is 9000/2 = 4,500.
How many integers between 1000 and 9999 inclusive does the digit 3 occur?
There are 3168 such numbers.
How many odd integers between 1000 and 9999 have distinct digits?
There are 120 of them.
How many positive integers between 1000 and 9999 inclusive a are divisible by 9?
There are 1,000 positive integers between 1,000 and 9,999, inclusive, that are divisible by nine.
How many integers between 1000-9999 have distinct digits?
9*9*8*7 = 4536
How many 4-digit positive integers are there?
from 1000 to 9999, ie 9999 - 999 = 9000
How many integers with distinct digits are there between 1000 and 9999 such that the absolute value of the difference between the first and the last digit is 1?
952 of them.
How many integers with distinct digits are there between 1000 and 9999 such that the absolute value of the difference between the first and the last digit is 3?
An infinite amount
What are prime numbers from 1000 to 9999?
Prime No: between 1000 to 9999= 54_( 42x3)
