Carter can read half as many pages as Lucy in 1 hour. Lucy can read 20 more pages than Oliver in 1 hour.  Oliver can read 40 pages.  How many pages can Carter read in 1 hour?
Lucy can read 20 more pages than Oliver who can read 40 pages so Lucy can read 40+20 = <<20+40=60>>60 pages
Carter can read half as many pages as Lucy who can read 60 pages so he can read 60/2 = <<30=30>>30 pages in 1 hour
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