Broken vases - Math Central

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Question from JC, a student:

Hello,

I need help with a question. It is said that a company delivers 1000 vases to a man. It charged $0.40 for every vase safely delivered.
But the company had to pay the man $5.10 for each broken glass.
If the man paid a total of $383.50 for the delivery, how many vases were broken?

Regs. ,
JC

JC,

If all the vases had arrived intact the charge would have been 1000 × $0.40 = $400 but he only paid $383.50. For each broken vase he didn't have to pay the $0.40 and he also rebate of $5.10. How many were broken?

Penny

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