rahulvsd wrote:If K is the sum of reciprocals of the consecutive integers from 43 to 48, inclusive, then K is closest in value to which of the following?
A. 1/12
B. 1/10
C. 1/8
D. 1/6
E. 1/4
[spoiler]
OA: C. Source: GMAT Prep[/spoiler]
Determine the RANGE of the sum.
If all of the fractions were 1/43, the sum = 6(1/43) ≈ 6/42 = 1/7.
If all of the fractions were 1/48, the sum = 6(1/48) = 6/48 = 1/8.
Thus, the sum must be between 1/7 and 1/8.
The correct answer is
C.
Private tutor exclusively for the GMAT and GRE, with over 20 years of experience.
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.
As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.
For more information, please email me (Mitch Hunt) at
[email protected].
Student Review #1
Student Review #2
Student Review #3
