Question 209310

I'd have a question; how do I find out how many odd 2 digit numbers are greater than 30?


The number of integers in a series of consecutive even or odd integers is calculated as: {{{((Largest_integer - Smallest_integer) + 2)/2}}}


Since the largest integer in the series of 2-digit odd integers between 30 and 100 is 99, and since the smallest is 31, we have: 


{{{((99 - 31) + 2)/2}}} ------> {{{(68 + 2)/2}}} ------> {{{70/2}}}, or {{{35}}}

Therefore, the amount of odd integers greater than 30 is {{{highlight_green(35)}}}