It takes 5 people to lift a car and twice as many people to lift a truck. How many people are needed to lift 6 cars and 3 trucks?
It takes 5 x 2 = <<5*2=10>>10 people to lift a truck.
5 x 6 = <<5*6=30>>30 people are needed to lift the cars.
10 x 3 = <<10*3=30>>30 people are needed to lift the trucks.
Altogether, 30 + 30 = <<30+30=60>>60 people are needed.
#### 60