Q: How many odd number are between 1-20?

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There are 120 of them.

There are 40 odd numbers between 20 and 100. Remember that an odd number is every second number. There are 80 numbers between 20 and 100, so there are 40 odd numbers and 40 even numbers.

The number of odd numbers between 38 and n = int[abs(n - 38)/2]

Odd numbers are those divided by two with remainder. Thus, between 5 and 8 there is be only one odd number 7.

15

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5. "Between" implies that 131 is not included.

There are 120 of them.

You could be 121.

9 multiplied by any other odd number will still be odd. 9 multiplied by any even number will be even - so the multiples of 9 between 1 and 120 that are odd would be:1x9 = 93x9 = 275x9 = 457x9 = 639x9 = 8111x9 = 9913x9 =117The next odd number you could multiply 9 by is 15 but 15x9 = 135, which is greater than 120 so does not fall within the constraints of the question.

There are 136 odd number between 1 and 275.

There are no numbers between 108 and 120 that have an even ten's digit. If you call 'zero' an even number, then ' 109 ' would qualify. But the whole exercise is still not too satisfying.

There are 19 numbers between zero and 365 that have an odd number of factors.

There are 11 numbers between 1 and 130 that have an odd number of factors: 1,4,9,16,25,36,49,64,81,100,121.

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60

There are 50.

There are 40 odd numbers between 20 and 100. Remember that an odd number is every second number. There are 80 numbers between 20 and 100, so there are 40 odd numbers and 40 even numbers.