A car cover a distance of 210km in 12 liter of petrol (1) find the distance travelled in 22 litres of petrol (b) how much petrol will be required to travel 350 km?
Answers
then distance travelled in 22km
=17.5*22=385km
then petrol needed for 350km
=350/17.5=20 litres
Hey Mate,
a)
Given,
A car travels 210 km in 12 litres of petrol.
Then,
=> Distance travelled in 1 litre of petrol = 210 km / 12
( Since, 210 km is the distance for 12 litres of petrol, so distance for 1 litre of petrol will be 210 / 12 )
=> Distance travelled in 1 litre of petrol = 17.5 km
=> Distance travelled in 22 litres of petrol = 17.5 * 22
( Since, 17.5 km is travelled in 1 litre of petrol, in 22 litres of petrol distance covered will be 17.5 * 22 )
=> Distance travelled in 22 litres of petrol = 385 km
Therefore, the distance travelled in 22 litres of petrol is equal to 385 km.
b)
Given,
A car travels 210 km in 12 litres of petrol.
Then,
=> Petrol required for travelling 1 km = 12 litres / 210
( Since, 12 litres is required for travelling 210 km, 12 / 210 litre is required for travelling 1 km )
=> Petrol required for travelling 350 km = ( 12 / 210 ) * 350
( Since, 12 / 210 litre is required for travelling 1 km, ( 12 / 210 ) * 350 litres is required for travelling 350 km )
=> Petrol required for travelling 350 km = ( 4200 / 210 ) litres
=> Petrol required for travelling 350 km = 20 litres
Therefore, petrol required for travelling 350 km is equal to 20 litres.
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