Progressions
Arithmetic and geometric progressions, nth term and sum formulas.
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Take a full mock →Q1 · Progressions · EASY
The common difference of the AP 20, 17, 14, 11, ... is:
Q2 · Progressions · HARD
If the 3rd term of a GP is 24 and the 6th term is 192, then the first term is:
Q3 · Progressions · EASY
The 10th term of the arithmetic progression 2, 5, 8, 11, ... is:
Q4 · Progressions · MEDIUM
The sum of the first 15 terms of an AP with first term 4 and common difference 3 is:
Q5 · Progressions · HARD
The sum of the first n terms of an AP is given by Sₙ = 3n² + 2n. The common difference is: