Brain Teaser #4


Mr McCartney, the new librarian in Minden, was quite busy last week. On Monday, he received some new books but was able to catalogue only some of them. On Tuesday, he received as many books as remained from Monday still to be processed and he was able to catalogue only ten of these latest arrivals. On Wednesday, he received twelve more than on Monday but he was able to catalogue on Wednesday and was able to process eight of them. On Friday, only six new books arrived; yet he catalogued twelve less than he had recived on Wednesday. On Saturday, the library was closed and he catalogued the remaining sixteen books.

How many did he receive on Wednesday?

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