FAST-NU Basic Mathematics — Commercial Arithmetic
Commercial Arithmetic 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 3 subtopics, and we hold 62 FAST-pattern practice MCQs on it, each with a written explanation. Tap a subtopic below to practise just that.
Subtopics (3)
How Commercial Arithmetic is tested
Across the 7 FAST-pattern papers on ParhaiKrlo, Commercial Arithmetic 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 |
Commercial Arithmetic MCQs from the FAST-pattern papers
Try each one before opening the answer. Each comes with a short explanation.
- Q1 · FAST Past Paper 07 · Commercial Arithmetic
A shopkeeper buys an article for Rs. 800 and sells it for Rs. 1,000. His profit percentage is:
- A.20%
- B.12.5%
- C.25%
- D.2.5%
Show answer
Answer: C. 25% — Profit = 200 on a cost of 800, so 200/800 × 100 = 25%.
- Q2 · FAST Past Paper 06 · Commercial Arithmetic
If the selling price of an article is less than its cost price, there is a:
- A.profit
- B.loss
- C.discount
- D.tax
Show answer
Answer: B. loss — SP < CP means a loss.
- Q3 · FAST Past Paper 05 · Commercial Arithmetic
A trader sells two watches for Rs. 990 each. On one he gains 10% and on the other he loses 10%. Overall he makes:
- A.no profit and no loss
- B.a 1% loss
- C.a 1% gain
- D.a 2% loss
Show answer
Answer: B. a 1% loss — Cost prices: 990/1.1 = 900 and 990/0.9 = 1,100. Total cost 2,000, total sale 1,980: a loss of 20, i.e. 1%.