FAST-NU Basic Mathematics — Ratio and Proportion
Ratio and Proportion is part of the Basic Mathematics 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 50 FAST-pattern practice MCQs on it, each with a written explanation. Tap a subtopic below to practise just that.
Subtopics (2)
How Ratio and Proportion is tested
Across the 7 FAST-pattern papers on ParhaiKrlo, Ratio and Proportion 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 |
Ratio and Proportion MCQs from the FAST-pattern papers
Try each one before opening the answer. Each comes with a short explanation.
- Q1 · FAST Past Paper 07 · Ratio and Proportion
Rs. 1,800 is divided among A, B and C in the ratio 2 : 3 : 4. C's share is:
- A.Rs. 600
- B.Rs. 400
- C.Rs. 720
- D.Rs. 800
Show answer
Answer: D. Rs. 800 — Total parts 9, each worth 200, so C gets 4 × 200 = Rs. 800.
- Q2 · FAST Past Paper 06 · Ratio and Proportion
In the ratio 3 : 7, the first term 3 is called the:
- A.consequent
- B.mean
- C.extreme
- D.antecedent
Show answer
Answer: D. antecedent — First term = antecedent; second term = consequent.
- Q3 · FAST Past Paper 05 · Ratio and Proportion
The ratio of boys to girls in a class is 4 : 5. If there are 36 students, the number of girls is:
- A.16
- B.45
- C.20
- D.9
Show answer
Answer: C. 20 — 9 parts make 36, so each part is 4 and girls = 5 × 4 = 20.