In a Volley ball tournament Deva tr.whistled one time after 4mts.Then after 8mts.she whistled 2 times and after 12mts. 3 times.If she continues like this find the No.of whistles played by her after 60mts.Also find the Algebric Form of the time sequence.?
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sorry I don't know the answer
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Answer:
The minutes in which Deva whistled = 4,8,12..
Let us take this times as an arithmetic sequence 4,8,12,16....
(d=common difference,n=no.of terms,f=first term)
Algebra of an arithmetic sequence = dn+(f-d)
= 4n+(4 - 4)=4n
4n=60
n=60/4
n=15
No.of whistles played after 60 minutes is 15.
Algebraic form of the sequence =4n(already found)
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