A scammer wants to scam lots of people. He scams 2 on the first day. 4 on the second. He scams 8 on the thirty and so on... How many people did he scam on his fifth day?
16. 8 x 2 =16
Tôi đi khắp mọi nơi nhưng tôi vẫn nằm im một chỗ. Tôi là ai?