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If the 7th term of an arithmetic progression is 50 and the common difference is 5, what is the first term?

Practice Questions

1 question
Q1
If the 7th term of an arithmetic progression is 50 and the common difference is 5, what is the first term?
  1. 25
  2. 30
  3. 35
  4. 40

Questions & Step-by-step Solutions

1 item
Q
Q: If the 7th term of an arithmetic progression is 50 and the common difference is 5, what is the first term?
Solution: Using the formula for the nth term, a + 6d = 50. Substituting d = 5 gives a + 30 = 50, hence a = 20.
Steps: 0

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