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A car owner buys a petrol at rupees 75, rs 85,rs 95 per litre for three successive years what approximately is his average cost per litre of petrol if he spend rupees 36000 each year​

answers: 1
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Answer:

Total quantity of petrol consumed in 3 years =(

7.50

4000

+

8

4000

+

8.50

4000

)litres

=4000(

15

2

+

8

1

+

17

2

)litres

=(

51

76700

)litres

Total amount spent =Rs.(3×4000)=Rs.12000.

∴ Average cost =Rs.(

76700

12000×51

)=Rs.

767

6120

=Rs.7.98

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