A man purchased 5 rolls of ribbons each measuring 60m at the rate of 4,6,10,12 and 15 m in a rupee respectively. Find the average price of ribbons
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Answer:
Average price is 8 rupees.
Given: Prices of 5 rolls 4m/rupee, 6m/rupee and so on.
Also given all rolls are 60m long.
Therefore
1st roll costs 15 rupees for 60m
2nd roll costs 10 rupees for 60m
3rd roll costs 6 rupees for 60m
4th roll costs 5 rupees for 60m
5th roll costs 4 rupees for 60m
Therefore average price= (15+10+6+5+4)/5
=8.
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