There are 30 pieces of popcorn in a serving. Jared can eat 90 pieces of popcorn and his three other friends can each eat 60 pieces of popcorn. How many servings of popcorn should Jared order for all of them?
Jared's friends can eat a total of 60 x 3 = <<60*3=180>>180 pieces of popcorn.
Jared and his three friends can eat a total of 180 + 90 = <<180+90=270>>270 pieces of popcorn.
Therefore, Jared should order 270/30 = <<270/30=9>>9 servings of popcorn.
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