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Two cars X and Y use 1 litre of diesel t...

Two cars X and Y use 1 litre of diesel to travel x km and (x + 3) km respectively. both the cars covered a distance of 72 km, then:
the number of litres of diesel used by car X is:

A

`(72)/(x - 3) ` litres

B

`(72)/(x + 3) ` litres

C

`72/x` litres

D

`12/x` litres

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