How many integers between 324,700 and 458,600 have a 2 in the tens digit and a 1 in the units digit?  Choose the correct choice: A) 1339 B) 2300 C) 4200 D) 1340 E) 2414
There is one number in hundred with 2 in th tens digit and 1 in the units digit: 21, 121, 221, 321, ...   The difference between 324,700 and 458,600 is 458,600-324,700=133,900 - one number per each hundred gives 133,900/100=1,339 numbers.   1339nswer: 1,339 1339
<result>A</result>
How many integers between 324,700 and 458,600 have a 2 in the tens digit and a 1 in the units digit?