Exactly 50
11
It would appear that these are a selection of numbers from Z, the set of integers - written without any separators.
Some examples of sets of real numbers include: The set of positive integers: {1, 2, 3, 4, ...} The set of rational numbers: {1/2, -3/4, 5/6, ...} The set of whole numbers: {..., -2, -1, 0, 1, 2, ...} The set of natural numbers: {0, 1, 2, 3, 4, ...} The set of irrational numbers: {√2, π, e, ...}
3, 5, 7, 11, 13, 17, 19, and 23; also 2 if it mean the prime numbers from 2 to 24 inclusive
[2,7] the bracket means inclusive but if it said exclusive it would have parenthesis replacing the brackets.
The set of even numbers is the set of all the numbers that are divisible by 2 (or multiples of 2).
All of the odd numbers between 11 and 99 inclusive are two digit numbers that are not multiples of 2. There are 45 of them.
Seven of them.
Exactly 50
11
There are 48/2 + 1 = 25 odd numbers in 1 to 49, inclusive.
It would appear that these are a selection of numbers from Z, the set of integers - written without any separators.
Some examples of sets of real numbers include: The set of positive integers: {1, 2, 3, 4, ...} The set of rational numbers: {1/2, -3/4, 5/6, ...} The set of whole numbers: {..., -2, -1, 0, 1, 2, ...} The set of natural numbers: {0, 1, 2, 3, 4, ...} The set of irrational numbers: {√2, π, e, ...}
between 1 and 600 inclusive there are:300 numbers divisible by 2200 numbers divisible by 3100 numbers divisible by both 2 and 3400 numbers divisible by 2 or 3.
3, 5, 7, 11, 13, 17, 19, and 23; also 2 if it mean the prime numbers from 2 to 24 inclusive
343!