[" 59.A car owner buys petrol at "717,719" and "z" 20"],[" per litre for three consecutive years.Compute the "],[" average cost per litre,if he spends "¥6460" per year."]

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) Rs 18.49 (b) Rs 18.58 (c) Rs 19.2 (d) Rs 21.66

A car owner buys petrol at 7.50, 8.00 and 8.50 per litre for three successive years. What approximately is his average cost per litre of petrol if he spends 4000 each year?

A car owner buys petrol at Rs. 40, Rs. 50 and Rs.60 per litre for 3 consecutive years. If he spends Rs. 30,000 each year, what is the average cost of a litre of petrol ? (correct to two decimal places)

The owner of a bike buys petrol at the rate of Rs. 64, Rs. 80 and Rs. 320 per litre for three consecutive years. If he spends Rs. 32000 on petrol every year, then what is the average price of petrol per litre ? एक बाइक का मालिक लगातार 3 वर्षों तक क्रमश: रु 64, रु 80 और रु 320 प्रति लीटर के हिसाब से पेट्रोल खरीदता है | यदि वह पेट्रोल खरीदने में हर वर्ष रु 32000 खर्च करता है, तो पेट्रोल का प्रति लीटर औसत मूल्य कितना है ?

The Bar graph shown below presents the number of employees in an office during eight consecutive years. What is the average number of employess per year?

A taxi- driver filled his car petrol tank with 40 litres of petrol on Mondy.The next day,he filled the tank with 50 litres of petrol.If the petrol costs Rs.44 per litre,how much did he spend in all on petrol?