He paid for 20-6=<<20-6=14>>14 candy bars

So he paid 14*1.5=$<<14*1.5=21>>21

# Answer

21
Question:
John buys 20 candy bars.  His brother Dave pays for 6 of them.  If each candy bar costs $1.50, how much did John pay?
Answer:
Let's think step by step.

user
21
John buys 20 candy bars.  His brother Dave pays for 6 of them.  If each candy bar costs $1.50, how much did John pay?
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