Dana has 15 more pencils than Jayden who has 20, so Dana has 20+15 = <<20+15=35>>35 pencils

Jayden has 20 pencils which is twice as much as Marcus's so Marcus has 20/2 = <<20/2=10>>10 pencils

Dana has 35-10 = <<35-10=25>>25 more pencils than Marcus

# Answer

25
Question:
Dana has 15 more pencils than Jayden, who has twice as much as Marcus. How many more pencils does Dana have than Marcus, if Jayden has 20 pencils?
Answer:
Let's think step by step.

user
25
Dana has 15 more pencils than Jayden, who has twice as much as Marcus. How many more pencils does Dana have than Marcus, if Jayden has 20 pencils?
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