Max and Dulce's total combined points are 5 + 3 = <<5+3=8>>8.
So, Val got 8 x 2 = <<8*2=16>>16 points.
And the total points of their team is 8 + 16 = <<8+16=24>>24.
Therefore, their team is 40 - 24 = <<40-24=16>>16 points behind.
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