15. How many integers between 324,700 and 458,600 have tens digit 1 and units digit 3?
(A) 10,300
(B) 10,030
(C) 1,353
(D) 1,352
(E) 1,339
E
(A) 10,300
(B) 10,030
(C) 1,353
(D) 1,352
(E) 1,339
E
Answer is E 1339.
For every 100 numbers we will have one number with tens digit 1 and units digit 3.
458600 - 324700 = 133900 ie 133900/100 = 1339.
