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GMAT - Problem Solving - Arithmetic

The value of is how many times the value of 2^-17

The value of (2-14  2-15  2-16  2-17) / 5 is how many times the value of 2-17

A. 3/2
B. 5/2
C. 3
D. 4
E. 5

(2-14 + 2-15 + 2-16 + 2-17) / 5

2-17 (23 + 22 + 2 + 1) / 5

2-17 (15)/5

2-17 * 3

Answer is 3

Option C is correct