nth term, sum of n terms, applied progression problems.
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Q1 · Arithmetic Progression · HARD
If the sum of first n terms of an AP is 3n² + 5n, then the common difference is:
Q2 · Arithmetic Progression · MEDIUM
The sum of first 20 terms of the AP 2, 7, 12, 17, ... is:
Q3 · Arithmetic Progression · EASY
The 10th term of the AP 5, 8, 11, 14, ... is:
Q4 · Arithmetic Progression · EASY
The 15th term of an arithmetic progression is 47 and the common difference is 3. What is the first term?
Q5 · Arithmetic Progression · EASY
The 7th term of an arithmetic progression is 34 and the 13th term is 64. What is the first term?