FAST-NU Advanced Mathematics — Sequences and Series
Sequences and Series is part of the Advanced Mathematics section of FAST's BS CS/Engineering admission test (usually 50 of the 120 MCQs, 50% of the marks). It breaks into 5 subtopics, and we hold 77 FAST-pattern practice MCQs on it, each with a written explanation. Tap a subtopic below to practise just that.
Subtopics (5)
How Sequences and Series is tested
Across the 7 FAST-pattern papers on ParhaiKrlo, Sequences and Series accounts for 28 questions. It appears in all 7, about 4 questions a paper. The heaviest was FAST Past Paper 07, with 4 questions.
| Paper | Questions |
|---|---|
| FAST Past Paper 07 | 4 |
| FAST Past Paper 06 | 4 |
| FAST Past Paper 05 | 4 |
| FAST Past Paper 04 | 4 |
| FAST Past Paper 03 | 4 |
| FAST Past Paper 02 | 4 |
| FAST Past Paper 01 | 4 |
Sequences and Series MCQs from the FAST-pattern papers
Try each one before opening the answer. Each comes with a short explanation.
- Q1 · FAST Past Paper 07 · Sequences and Series
The sum of all two-digit numbers that are divisible by 7 is:
- A.784
- B.735
- C.630
- D.728
Show answer
Answer: D. 728 — They are 14, 21, …, 98: an A.P. with 13 terms. Sum = 13 × (14 + 98)/2 = 13 × 56 = 728.
- Q2 · FAST Past Paper 06 · Sequences and Series
In an A.P. with first term 7 and common difference 0, every term is:
- A.7
- B.0
- C.14
- D.7n
Show answer
Answer: A. 7 — Adding 0 each time keeps every term equal to 7.
- Q3 · FAST Past Paper 05 · Sequences and Series
The 10th term of the A.P. 2, 5, 8, … is:
- A.32
- B.30
- C.29
- D.27
Show answer
Answer: C. 29 — a₁₀ = 2 + 9 × 3 = 29.