Larry reads 42 pages in 7 nights each week. Anna reads 62 pages in 5 nights each week. Who reads more pages in a week?

Larry reads 6 pages a day for a total of 42 pages
Anna reads 12.4 pages a day for 5 days, but if she reads all 7 days she will read 86.8 pages.

Even if Anna only read 5 days she still reads 62 pages which is more than the 42 days that Larry reads.

Taking the wording of the question literally:

Keep in mind that a week consists of 7 days
Also that notice that the questions wording includes "each week"

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#color(red)("Larry "->" each week " -> 42" pages"#
The wording: "42 pages#color(magenta)(" in ")#7 nights.." indicates that the total count of pages is 42. Also it is important that this is #color(red)("each week")#.

This is very different to 42 pages #color(magenta)("each night for 7 nights")#

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#color(red)("Anna "->" each week "-> 62" pages"#
The wording: "62 pages#color(magenta)(" in ")#5 nights.." indicates that the total count of pages is 62. Also it is important that this is #color(red)("each week")#.
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As these are the amounts each week and the question requires the answer for "each week" we may and can make a direct comparison between the given counts without any mathematical manipulation

#color(blue)("Solution: "->" Anna reads more at 62 in 1 week")#