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Questions and Answers
What is the sum of the first 20 terms of the arithmetic progression 3, 7, 11, ...?
What is the sum of the first 20 terms of the arithmetic progression 3, 7, 11, ...?
- 400
- 460
- 420 (correct)
- 440
In an arithmetic progression, if a6 = 23 and a15 = 53, what is the common difference?
In an arithmetic progression, if a6 = 23 and a15 = 53, what is the common difference?
- 6
- 4
- 3
- 5 (correct)
For an arithmetic progression with a common difference of 6, what is the 25th term if the first term is 4?
For an arithmetic progression with a common difference of 6, what is the 25th term if the first term is 4?
- 148
- 152
- 154 (correct)
- 150
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