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75% (01:41) correct
25% (03:03) wrong based on 4 sessions
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\(a_{1}, a_{2}, a_{3}\) ...... \(a_{n}\) .....
In the sequence above, each term after the first term is equal to the preceding term plus the constant \(c\). If \(a_{1}+a_{3}+a_{5}=27\), what is the value of \(a_{2}+a_{4}\)?
In the sequence above, each term after the first term is equal to the preceding term plus the constant \(c\). If \(a_{1}+a_{3}+a_{5}=27\), what is the value of \(a_{2}+a_{4}\)?
03 Aug 2024, 04:54
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Official Explanation
Note that answering this question requires information only about the first five terms of the sequence. So it is a good idea to work with the relationships among these five terms to see what is happening. Since you are given that in this sequence each term after is c greater than the previous term, you can rewrite the first five terms of the sequence in terms of \(a_{1}\) and \(c\) as follows.
Note that answering this question requires information only about the first five terms of the sequence. So it is a good idea to work with the relationships among these five terms to see what is happening. Since you are given that in this sequence each term after is c greater than the previous term, you can rewrite the first five terms of the sequence in terms of \(a_{1}\) and \(c\) as follows.
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