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If the 5th term of an arithmetic progression is 20 and the 10th term is 35, what is the first term?

Practice Questions

1 question
Q1
If the 5th term of an arithmetic progression is 20 and the 10th term is 35, what is the first term?
  1. 5
  2. 10
  3. 15
  4. 20

Questions & Step-by-step Solutions

1 item
Q
Q: If the 5th term of an arithmetic progression is 20 and the 10th term is 35, what is the first term?
Solution: Let the first term be a and the common difference be d. From the equations a + 4d = 20 and a + 9d = 35, we can solve for a to find it is 10.
Steps: 0

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