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If \(\dfrac12\) of the air in a tank is removed with each stroke of a vacuum pump, what fraction of the original amount of air has been removed after \(4\) strokes?
A. \(\dfrac{15}{16}\)
B. \(\dfrac78\)
C. \(\dfrac14\)
D. \(\dfrac18\)
E. \(\dfrac1{16}\)
A
Source: Official Guide
A. \(\dfrac{15}{16}\)
B. \(\dfrac78\)
C. \(\dfrac14\)
D. \(\dfrac18\)
E. \(\dfrac1{16}\)
A
Source: Official Guide
