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There are 80 positive integers from 1 to 80.
Half of them are even, the other half are odd.
So there are 40 even integers from 1 to 80.
2, 4, 6, and 8 have only 1 digit.
All the rest have 2 digits.
So the answer is (40 - 4) = 36 .
However, as the question asked "less than 80" we can not include 80 and so the answer is 35.
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Which has more elements the set of positive odd integers less than 50 or the set of positive even integers less than 50?
The set of positive odd integers.
Set of all even numbers less than 9?
The positive even integers are: 0 2 4 6 and 8
What are the positive integers less than 11?
The positive integers less than 11 are the natural numbers 1-10.That is to say 1,2,3,4,5,6,7,8,9 and 10.
How many positive integers are there less than 10000?
One less than 10000.
How many positive integers less than 100 have an odd number of positive divisors?
The squares -- nine of them.
Which has more elements the set of positive odd integers less than 50 or the set of positive even integers less than 50?
The set of positive odd integers.
How many positive integers less than 60 are equal to the product of a positive multiple of 5 and an even number?
Five of them.
What is the ratio of odd no less than 20 to the even no less than 20?
Assuming you refer to positive integers, the answer is 10:9
What is the sum of the first positive odd integers less than 101?
The sum of the first positive odd integers less than 101 is 10,000.
Set of all even numbers less than 9?
The positive even integers are: 0 2 4 6 and 8
Why does negative integers less than positive integers?
the negative integers are below 0, for example -6.
How many positive integers less than 2010 have an odd number of factors?
There are 44 positive integers less than 2,010 that have an odd number of factors.
What is a positive integer and what is a negtive integer?
Positive integers are greater than zero. Negative integers are less than zero.
How many positive integers less than 1000 are not divisible by 3?
666 integers.
How many positive integers are less then 50?
49
What is the sum of all the digits of all the positive integers that are less than 100?
The sum of all the digits of all the positive integers that are less than 100 is 4,950.
What is the set of even natural numbers less than 9?
In ascending numerical order, the set of even positive integers less than 9 is: 2, 4, 6, 8
