Each week Manhattan GMAT posts a GMAT question on our blog and follows up with the answer the next day. Are you up for the challenge?
For all positive integers n, the nth term in sequence Sn is defined as follows:
Sn = (n!)-1
The sum of the first six terms of Sn is
A: between 0 and ½
B: between ½ and 1
C: between 1 and 1½
D: between 1½ and 2
E: greater than 2