Question

Car 6 truck 10 suv 14 minivan 15 at this rate if 150 vehicles passed Luann how many more mini vans than cars would pass her

Answer 1

number of minivans more than number of car = 30

Explanation:

we have the rate of number of vehicles passed in one unit of time

Number of cars = 6

Number of trucks = 10

Number of SUV = 14

and number of minivan = 15

Total vehicle passed in one unit of time = 6+10+14+15 = 45 vehicle per unit time.

we can see the ratio of vehicles with each other can be given as:

6x+10x+14x+15x = 150

Now we can solve for x to get the number of cars and minivans in 145 vehicles.

or 45x = 150

or x = 150÷45 =
`(10)/(3)`

so, number of cars in 150 vehicles = 6x = 6×
`(10)/(3)` = 20 cars

number of minivan in 150 vehicles = 15x = 15×
`(10)/(3)` = 50 minivans.

So, number of minivans more than number of car = 50 - 20 = 30