What is the scope including 1/31+1/32+1/33+......+1/40? Choose the correct choice:
A) 1/6~1/5	B) 1/5~1/4	C) 1/4~1/3	D) 1/3~1/2	E) 1/2~1
For Maximum value : It should be less than 1/31 + 1/31 +1/31... 10 times = 10/31 ~ 1/3   For Minimum Value : It should be greater than 1/40+ 1/40+ 1/40 .. 10 times = 10/40 = 1/4.   Thus, the answer should lie between 1/4 and 1/3. 1/4~1/3orrect ans : 1/4~1/3.
<result>C</result>
What is the scope including 1/31+1/32+1/33+......+1/40?