The first and last terms of a 52-term arithmetic series are listed in the table. What is the sum of the series?
2 answers:
Answer: 4030
Step-by-step explanation:
We know that sum of an arithmetic series with first term as 'a' and the last term as 'l' is given by :-
, where n is the number of terms
In the given situation, the number of terms = 52
The first term = 1
The 52th term = 154
Then the sum of 52 terms ids given by :-
Hence, the sum of the series =4030
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Thus we know in an hour, an oil company can fill 3/12 of a tank (60 minutes in an hour).
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Our answer is that it takes 4 hours to fill a tank.