In an arithmetic progression, if the 4th term is 20 and the 7th term is 26, what is the first term?
Practice Questions
1 question
Q1
In an arithmetic progression, if the 4th term is 20 and the 7th term is 26, what is the first term?
10
12
8
14
Let the first term be a and the common difference be d. From the equations a + 3d = 20 and a + 6d = 26, we can solve for a and find it to be 12.
Questions & Step-by-step Solutions
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Q
Q: In an arithmetic progression, if the 4th term is 20 and the 7th term is 26, what is the first term?
Solution: Let the first term be a and the common difference be d. From the equations a + 3d = 20 and a + 6d = 26, we can solve for a and find it to be 12.
