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Mathematics
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an art dealer sold 16 etchings for $605 . He sold some of them at $35 each and the rest at $40 each . How many etchings did he sell at each price

Mar 25th, 2015

If all etching were sold at $35 each, the total cost would have been $ 560, that is $45 less than the actual cost. Since each $40 etching sold increased the cost by $5, there were 45/5= 9 etchings at $40 and 16-9= 7 etchings at $35. 

Answer: 7 etchings were sold at $35 and 9 etchings were sold at $40.

Verify: 7*35 + 9*40 = 245 + 360 = 605.

Mar 25th, 2015

thank you so much your calculations were correct thanks . 

Jun 23rd, 2015

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