Human: Thomas withdraws $1000 in 20 dollar bills from the bank account. He loses 10 bills while getting home. After that, he uses half of the remaining bills to pay for a bill. Thomas then triples his money. He then converts all his bills to 5 dollar bills. How many 5 dollar bills does he have? Assistant: 
How many bills did Thomas withdraw? ** He withdrew 1000/20=<<1000/20=50>>50 bills
How many bills does Thomas have left? ** So he has 50-10=<<50-10=40>>40 bills left over
How many bills does Thomas use to pay for something? ** He uses half the bills to pay for something, so he has 40/2=<<40/2=20>>20 bills
How many bills does Thomas triple? ** He triples his money which gives him 20*3=<<20*3=60>>60 bills
How many 5 dollar bills does Thomas have? ** So he has 60*20=$<<60*20=1200>>1200
How many 5 dollar bills does Thomas have? ** Converting to 5s means he has 1200/5=<<1200/5=240>>240 bills
#### 240