Question

A car wash uses gas at the rate of 1 litre for every 6.5 kilometres. Determine the number of litres used if it travels x kilometres​

Answer 1

The number of liters used by the car on travelling
`x` kilometers can be given as :
`(x)/(6.5)` liter.

Explanation:

Given:

A car wash uses gas at the rate of 6.5 kilometers per liter.

To determine the number of liters used if it travels
`x` kilometers.

Solution:

We will use unitary method to determine the number of liters of gas used by the car if it travels
`x` kilometers.

If 6.5 kilometer consumes 1 liters of gas.

So, 1 kilometer will consume =
`(1)/(6.5)` liters

Thus, for
`x` kilometers will consume =
`x* (1)/(6.5)=(x)/(6.5)` liters

Thus, number of liters used by the car on travelling
`x` kilometers can be given as :
`(x)/(6.5)` liter.