Question

6. My car goes 6 km on a litre of petrol My friend's car
goes 9 km on a litre of petrol. How much petrol does he use
on a trip for which I use 9 litres ?
the answer is 6 ..I know ..but how will I arrange this..please help​

Answer 1

Step-by-step explanation:

I goes 6km on a litre of petrol

My friend goes 9 km on a litre of petrol

I use 9 litres petrol for a trip

I goes no.of km in the trip=9×6=54km

he use no.of litres of petrol for 54 km =54/9=6litres

Answer 2

Step-by-step explanation:

your car,

6 km-----------→1 liter petrol

? ---------------→9 liter petrol

9*6 =54km. (1)

your friends car,

9 km------------→1 liter petrol

54km------------→?

54*1/6

6 litres of petrol.