A carton of ice cream contains 10 scoops each.  Mary has 3 cartons of ice cream, one chocolate, one strawberry and one vanilla.  Ethan wants one scoop of vanilla and one of chocolate.  Lucas, Danny and Connor all want 2 scoops of chocolate.  Olivia would like a scoop of vanilla and one of strawberry.  Shannon wants twice as much as Olivia.  How many scoops of ice cream will be left?
The total number of scoops of ice cream that Mary has is 3 cartons * 10 scoops = <<3*10=30>>30 scoops of ice cream.
Lucas, Danny and Connor will eat 2 scoops * 3 people = <<2*3=6>>6 scoops of ice cream.
Shannon will eat 2 * (1 vanilla + 1 strawberry) = <<2*(1+1)=4>>4 total scoops of ice cream.
Combined the kids will eat a total of 2 + 6 + 2 + 4 scoops = <<2+6+2+4=14>>14 scoops of ice cream.
Mary will have 30 scoops - 14 scoops = <<30-14=16>>16 scoops of ice cream remaining.
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