 
 <translate> My question is: There are 480 zombies in the shopping mall. If the number of zombies doubled every day, how many days ago were there less than 50 zombies in the mall? Your thoughts: <ibo> Ajụjụ m bụ: E nwere ndị zombies 480 n'ụlọ ahịa ahụ. Ọ bụrụ na ọnụọgụgụ nke ndị zombies na-amụba okpukpu abụọ kwa ụbọchị, ụbọchị ole gara aga ka e nwere ihe na-erughị ndị zombies 50 n'ụlọ ahịa ahụ? Ihe i chere: 