A car uses 20 litres of petrol for a journey of 180km.how many litres will it use for a journey of 108km?(assume its travels at the same rate
Pls give me the answer I need it right now
1litre=180/20=9km, therefore 108km=108/9=12l
To find out how many liters of petrol the car will use for a journey of 108 km, we can use a proportion based on the distance traveled.
First, let's set up the proportion using the relationship between the distance traveled and the amount of petrol used:
Distance 1 / Petrol 1 = Distance 2 / Petrol 2
In this case, Distance 1 is 180 km and Petrol 1 is 20 liters. Distance 2 is 108 km, and we need to find Petrol 2.
180 km / 20 liters = 108 km / Petrol 2
To find Petrol 2, we can cross-multiply and solve for it:
180 km * Petrol 2 = 20 liters * 108 km
180 * Petrol 2 = 2160
Petrol 2 = 2160 / 180
Petrol 2 = 12 liters
Therefore, for a journey of 108 km, the car will use 12 liters of petrol.
I'm standard 6 so i want some new things here
My ques
Thank you
Just use a simple ratio
x/108 = 20/180
Now just solve for x
or
if 180 km uses 20 L
then 1 km uses 20/180 L
so 108 km will use 108(20/180) L, notice you end up with the same calculations.
(Just receiving the answer means that you have learned nothing)