2545 to 2554 -- ten of them.
The answer would be 194.
430
480
900
1,374 rouned to the nearest hundred
3623 to the nearest hundred is 4000
100
It then is 3900 because 75 rounds up to 100
Two thousand, five hundred fifty.
nearst hundered is 3800
It is (2550 + 2900)/2 = 2725