 
 <translate> Q: 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 1 strokes ?
Options:
(A) 1/2
(B) 7/8
(C) 1/4
(D) 1/8
(E) 1/16 <hau> Tambaya: Idan 1/2 na iska a cikin tanki an cire shi tare da kowane bugun jini na famfo, menene kashi na adadin iska na asali da aka cire bayan bugun jini 1? Zaɓuɓɓuka: (A) 1 da rabi (B) 7/8 (C) 1/4 (C) 1/4 (C) (D) 1/8 (E) 1/16 