If the first page had 5 drawings, and the number of drawings on each page increased by five, the second page had 5+5 = <<5+5=10>>10
The total number of drawings in the first 2 pages is 5+10 = <<5+10=15>>15
On the third page, the number of drawings increased to 10+5 = <<10+5=15>>15
The first three pages have a total of 15+15 = <<15+15=30>>30 drawings.
The fourth page had 15+5 = <<15+5=20>>20 drawings.
There are 30+20 = <<30+20=50>>50 drawings on the first four pages.
The fifth page also had an extra 5 more drawings than the fourth page, totaling 20+5 = <<20+5=25>>25
For the first five pages, Janice saw 25+50 = <<25+50=75>>75 pages.
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