A car owner buys petrol at Rs.7.50, Rs. 8 and Rs. 8.50 per litre for three successive years. What approximately is the average cost per litre of petrol if he spends Rs. 4000 each year?

Question

Accepted Answer

Total quantity of petrol
consumed in 3 years

…

=

❨

4000

+

∴ Average cost = Rs.	❨	12000 x 51	❩	= Rs.	6120	= Rs. 7.98
		76700			767

A car owner buys petrol at Rs.7.50, Rs. 8 and Rs. 8.50 per litre for three successive years. What approximately is the average cost per litre of petrol if he spends Rs. 4000 each year?

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