a is an integer greater than 39 but less than 51, b is an integer greater than 49 but less than 61, what is the range of a/b?	Choices
A) 1 / 4	B) 1 / 3	C) 3 / 4	D) 1	E) 5 / 4

Rationale: "min value of a / b will be when b is highest and a is lowest - - - > a = 40 and b = 60 so , a / b = 2 / 3 max value of a / b will be when b is lowest and a is highest - - - > a = 50 and b = 50 so , a / b = 1 range is 1 - ( 2 / 3 ) = 1 / 3 . answer should be b ."
Answer: B