<human>:  A business executive is going on a four day vacation where he will be unable to answer emails. The first day he is gone, he receives 16 new emails. On each of the following days, he receives half as many new emails as he received on the prior day. At the end of his four day vacation, how many new emails will he have received in total?
<bot>: How many new emails does the executive receive on the second day? ** On the second day, the executive receives 16/2 = <<16/2=8>>8 new emails.
How many new emails does the executive receive on the third day? ** On the third day, he receives 8/2 = <<8/2=4>>4 new emails.
How many new emails does the executive receive on the fourth day? ** On the fourth day, he receives 4/2 = <<4/2=2>>2 new emails.
How many new emails will the executive have received in total? ** Therefore, during the entire trip he will have received 16 + 8 + 4 + 2 = <<16+8+4+2=30>>30 new emails.
#### 30