.A car can travel 3.5Km on 30 litres of petrol. How far the car can travel, If it has 50 litres of petrol in its tank?

Given:

A car can travel 3.5 km on 30 litres of petrol.

To find:

The distance a car can cover if it has 50 litres of petrol in its tank.

Solution:

We have,

On 30 litres, a car can travel = 3.5 km

On 1 litre, a car can travel = km

On 50 litres, a car can travel = km

                                               = km

                                               = km

                                              km

Therefore, a car can travel 5.83 km on 50 litres.

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you