Question

jessie uses 20 liters of gasoline to travel 200kilometers, how many liters of gasoline will he use on a trip of 700 kilometer?

Answer 1

Answer: He will use 70 liters of gasoline on a trip of 700 kilometer.

Step-by-step explanation:

Given : Jessie uses 20 liters of gasoline to travel 200 kilometers.

We assume that the rate of consumption of gasoline is contant.

By UNITARY METHOD, the amount of gasoline required for 1 kilometer distance = $\dfrac{20}{200}=\dfrac{1}{10}$ liter

Now, the amount of gasoline required for 700 kilometer distance = $700\times\dfrac{1}{10}=70$ liters

Hence, He will use 70 liters of gasoline on a trip of 700 kilometer.

Answer 2

20:200
?:700
200×3.5=700
20×3.5=?
?=70
He can use 70 liters of gasoline on a trip of 700km