What is the total number of integers between 20 and 70 that are divisible by 2? Pick.
A) 19  B) 25  C) 24  D) 26  E) 20

Rationale: "22 , 24 , 26 , . . . , 56,58 this is an equally spaced list ; you can use the formula : n = ( largest - smallest ) / ( ' space ' ) + 1 = ( 70 - 22 ) / ( 2 ) + 1 = 48 / 2 + 1 = 24 + 1 = 25 answer is b"
Answer: B