 
 <translate> If 1/2 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 6 strokes ?
Options:
(A) 63/64
(B) 7/8
(C) 1/4
(D) 1/8
(E) 1/16 Now, let's think a bit. Some random thoughts: <hau> Idan an cire rabin iska a cikin tanki tare da kowane bugun jini na famfo, wane kashi na adadin iska da aka cire bayan bugun jini 6? Zaɓuɓɓuka: (A) Shekaru 63 zuwa 64 (B) 7/8 (C) 1/4 (C) 1/4 (C) (D) 1/8 (E) 1/16 Yanzu, bari mu yi tunani kadan. Wasu tunani bazuwar: 