On a birthday party, on an average 5 bottles of coke are used to serve 6 people.how many people were present in th party if 15 bottles of coke were used ?
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Solution
5 bottles is used to serve 6 peoples
Hence 1 bottle will be used to serve 6/5 people
So 15 bottle will be used to serve (6/5)*15 = 18 peoples.
Hence the number of peoples served by 15 coke is 18.