Since one in every 2 numbers is even, you need to subtract 4000 - 200, then divide the difference by 2.The actual answer is one less (if you exclude the extremes), or one more (if you include them).
How many even numbers are there between 165 and 345
There are four even numbers between one and nine. the four even numbers are 2,4,6 and 8.
There are 456 such numbers.
4,129
There are 25 such numbers.
4000 of them.
49
How many even numbers are there between 165 and 345
There are 49 even numbers between 1 and 99.
There are 18 even numbers between 1 and 37
There are four even numbers between one and nine. the four even numbers are 2,4,6 and 8.
There are 100 even numbers between 1 and 200 (inclusive).
There are 3,999 even numbers between 1,000 and 9,000.
There are 456 such numbers.
99
4,129
75 - 1 = 74 numbers between 1 and 75. Divide 74 by 2 = 37 even numbers.