FAST-NU Analytical Skills & IQ — Coding and Decoding
Coding and Decoding is part of the Analytical Skills & IQ section of FAST's BS CS/Engineering admission test (usually 20 of the 120 MCQs, 20% of the marks). It breaks into 2 subtopics, and we hold 53 FAST-pattern practice MCQs on it, each with a written explanation. Tap a subtopic below to practise just that.
Subtopics (2)
How Coding and Decoding is tested
Across the 7 FAST-pattern papers on ParhaiKrlo, Coding and Decoding accounts for 14 questions. It appears in all 7, about 2 questions a paper. The heaviest was FAST Past Paper 07, with 2 questions.
| Paper | Questions |
|---|---|
| FAST Past Paper 07 | 2 |
| FAST Past Paper 06 | 2 |
| FAST Past Paper 05 | 2 |
| FAST Past Paper 04 | 2 |
| FAST Past Paper 03 | 2 |
| FAST Past Paper 02 | 2 |
| FAST Past Paper 01 | 2 |
Coding and Decoding MCQs from the FAST-pattern papers
Try each one before opening the answer. Each comes with a short explanation.
- Q1 · FAST Past Paper 07 · Coding and Decoding
In a certain code, COLD is written as DPME. How is WARM written in that code?
- A.VZQL
- B.XBSN
- C.YCTO
- D.XCSN
Show answer
Answer: B. XBSN — Each letter moves one place forward: W→X, A→B, R→S, M→N, giving XBSN.
- Q2 · FAST Past Paper 06 · Coding and Decoding
In a certain code, PENCIL is written as RGPEKN. How is MARKER written in that code?
- A.OCTMGT
- B.NBSLFS
- C.OCTLGT
- D.ODTMGT
Show answer
Answer: A. OCTMGT — Each letter moves two places forward: M→O, A→C, R→T, K→M, E→G, R→T.
- Q3 · FAST Past Paper 05 · Coding and Decoding
If MOTHER is written as NPUIFS in a certain code, how is SISTER written in that code?
- A.TJTUFS
- B.RHRSDQ
- C.TJTUFR
- D.TISUFS
Show answer
Answer: A. TJTUFS — Each letter moves one place forward: S→T, I→J, S→T, T→U, E→F, R→S.