Manolo bought five lollipops and four candies that cost $3.20. If each lollipop costs $0.40, how much will 10 lollipops and 10 candies cost him?
Five lollipops cost $0.4 x 5 = $<<0.4*5=2>>2.
So four candies cost $3.20 - $2 = $1.20.
Thus, each candy costs $1.20/4 = $<<1.20/4=0.30>>0.30.
Ten lollipops cost $0.4 x 10 = $<<0.4*10=4>>4.
Ten candies cost $0.30 x 10 = $<<0.30*10=3>>3.
Hence, 10 lollipops and 10 candies will cost $4 + $3 = $7.
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