Lucca has 100 balls and 10 percent of his balls are basketballs. Lucien has 200 balls and 20 percent of them are basketballs. In total how many basketballs do Lucca and Lucien have?
Lucca has 100 basketballs x (10 / 100) = <<100*10/100=10>>10 basketballs.
Lucien has 200 basketballs x (20 / 100) = <<200*(20/100)=40>>40 basketballs
Together they have 10 basketballs + 40 basketballs = <<10+40=50>>50 basketballs.
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