A car owner buys petrol at Rs. 17, Rs. 19 and Rs. 20 per litre for three consecutive years. Compute the average cost per litre, if he spends Rs 6460 per year.

A car owner buys petrol at Rs. 17, Rs. 19 and Rs. 20 per litre for thr

1.	A car owner buys petrol at Rs. 17, Rs. 19 and Rs. 20 per litre for three consecutive years. Compute the average cost per litre, if he spends Rs 6460 per year.
A.	s. 18.49
B.	s. 18.58
C.	s. 19.20
D.	s. 21.66
Answer» C. s. 19.20

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A car owner buys petrol at Rs. 17, Rs. 19 and Rs. 20 per litre for three consecutive years. Compute the average cost per litre, if he spends Rs 6460 per year.

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