Preparation guide
Browserstack Aptitude Questions
Overview
This page has BrowserStack aptitude questions with full solutions - numerical ability, verbal, and logical reasoning - in the style students report for the BrowserStack OA. Start with the timed mock quiz, then work the solved set and log every miss by topic.
BrowserStack Aptitude Mock Quiz
Timed placement-style MCQs with score and explanations after you submit. Use it to check speed and accuracy before the real test.
Questions15
Time10 min
Quantitative
A: Pomfret is a fish B: Pomfret is not a fish C: Pomfret will not lay eggs D: Some fish lay eggs E: All fish lay eggs F: Pomfret may lay eggs.
Correct answer: ADF
Quantitative
What is arr after execution?
Correct answer: [4, 3, 2, 1]
Verbal
Fill in: She is good _____ mathematics.
Good at a subject.
Quantitative
If cost price is ₹250 and profit is 20%, selling price is:
SP = 250 × 1.2 = ₹300.
Reasoning
Statements: All birds can fly. Penguins are birds. Conclusion: Penguins can fly. Is the conclusion valid?
Correct answer: Invalid (first premise is false)
Reasoning
Complete the series: AZ, BY, CX, ?
First letter +1, second −1 → DW.
Reasoning
A walks 9 km north, then 12 km east. Distance from start is:
Right triangle → 15 km.
Verbal
Antonym of "Expand":
Expand ↔ contract.
Verbal
Antonym of "Arrival":
Arrival ↔ departure.
Reasoning
Which comes next: 5, 10, 20, 40, ?
Each term doubles → 80.
Quantitative
A can complete a work in 12 days, B in 15 days. They work together for 4 days, then A leaves. How long will B take to complete the remaining work?
Correct answer: 6 days
Quantitative
A man can row 6 km/h in still water. If the river flows at 2 km/h, how long will he take to row 12 km upstream?
Speed in still water = 6 km/h Speed of stream = 2 km/h Upstream speed = 6 - 2 = 4 km/h Time = Distance/Speed = 12/4 = 3 hours
Quantitative
If the sum of three consecutive integers is 72, what is the smallest of these integers?
Let the integers be x, x+1, and x+2. x + (x + 1) + (x + 2) = 72 3x + 3 = 72 3x = 69 x = 23 Therefore, the integers are 23, 24, and 25.
Verbal
Problem: Choose the correct sentence: a) Neither the students nor the teacher were present b) Neither the students nor the teacher was present c) Neither the students or the teacher was present
With "neither...nor", the verb agrees with the subject closer to it. "Teacher" is singular, so "was" is correct.
Reasoning
All cats are dogs. Some dogs are rats. Conclusions: I. Some cats are rats. II. Some rats are dogs.
II follows from "some dogs are rats". I does not necessarily follow.
Your score
0/15(0%)
Review
BrowserStack aptitude topics students usually practice
- Numerical / quantitative: percentages, profit and loss, ratios, time and work, averages, SI/CI, speed-distance
- Logical reasoning: series, coding-decoding, blood relations, seating, syllogisms
- Verbal ability: grammar, vocabulary, error spotting, idioms
Numerical ability questions
Q1: Pipe empty
Problem: A pipe fills in 8 hours; a leak empties in 12. Time to fill with both open?
Solution: Rate = 1/8 − 1/12 = 1/24. Time = 24 hours.
Answer: 24 hours
Q2: Consumption cut
Problem: If the price of an item rises by 25%, by what percent should consumption fall so that expenditure stays the same?
Solution: Required reduction = r/(100+r) × 100 with r = 25. = 25/125 × 100 = 20%.
Answer: 20%
Q3: Number digit sum
Problem: Sum of digits of a two-digit number is 9. If digits are reversed, number increases by 27. Original number?
Solution: 10a+b; a+b=9; 10b+a = 10a+b+27 → 9b−9a=27 → b−a=3. a+b=9, b−a=3 → b=6, a=3. Number = 36.
Answer: 36
Q4: Profit false weight
Problem: A seller uses 900 g weight for 1 kg and sells at cost price. Profit %?
Solution: Buys 900, sells as 1000 at CP. Profit = 100/900 × 100 ≈ 11.11%.
Answer: 11.11%
Q5: Calendar day
Problem: If 1 January is a Friday, what day is 1 March of a non-leap year?
Solution: Jan 31 + Feb 28 = 59 days = 8 weeks + 3 days. Friday + 3 = Monday.
Answer: Monday
Q6: Unitary rice
Problem: 12 kg rice costs ₹540. Cost of 8 kg?
Solution: Per kg = 45. 8 kg = ₹360.
Answer: ₹360
Q7: Fraction simplify
Problem: Simplify: (3/4) ÷ (9/8) × (2/3).
Solution: (3/4) × (8/9) × (2/3) = (3×8×2)/(4×9×3) = 48/108 = 4/9.
Answer: 4/9
Q8: Mean median hint
Problem: Numbers 2, 5, 8, 11, x have mean 8. Find x.
Solution: Sum = 40. 2+5+8+11+x=40 → x=14.
Answer: 14
Q9: Speed convert
Problem: Convert 18 m/s to km/h.
Solution: Multiply by 18/5: 18 × 18/5 = 64.8 km/h.
Answer: 64.8 km/h
Q10: Alligation milk
Problem: Milk at ₹40/L and ₹50/L mixed to get ₹44/L. Ratio of quantities?
Solution: Alligation: (50−44):(44−40) = 6:4 = 3:2.
Answer: 3:2
Verbal ability questions
Q11: Idiom - piece of cake
Problem: What does ‘a piece of cake’ mean?
Solution: It means something very easy.
Answer: Very easy
Q12: Fill in the blank
Problem: She _____ to the office every day by metro. (go / goes / going / gone)
Solution: Third-person singular present needs ‘goes’.
Answer: goes
Q13: Fill blank preposition
Problem: She is good _____ mathematics. (in / at / on / of)
Solution: Standard collocation: good at.
Answer: at
Q14: Synonym - obsolete
Problem: Choose the best synonym of ‘obsolete’.
Solution: ‘Obsolete’ means no longer in use. Closest: outdated.
Answer: Outdated
Q15: Synonym - abundant
Problem: Choose the best synonym of ‘abundant’.
Solution: ‘Abundant’ means present in large quantity. Closest match: plentiful.
Answer: Plentiful
Q16: Error spotting tense
Problem: Identify the error: He go to school yesterday.
Solution: Past time marker needs past tense: went.
Answer: go → went
Reasoning ability questions
Q17: Number series gap
Problem: Find the missing number: 5, 11, 23, 47, ?
Solution: ×2+1 pattern: 5→11→23→47→95.
Answer: 95
Q18: Coding opposite
Problem: If ROAD is coded as URDG, how is RACE coded?
Solution: Each letter +3: R→U, O→R, A→D, D→G. R→U, A→D, C→F, E→H → UDFH.
Answer: UDFH
Q19: Blood uncle
Problem: A is B’s brother. C is A’s mother. D is C’s father. How is B related to D?
Solution: D is C’s father; C is mother of A and B. B is D’s grandchild.
Answer: Grandchild
Q20: Direction return
Problem: You walk 2 km east, 3 km south, 2 km west. How far from start?
Solution: East/west cancel; 3 km south from start.
Answer: 3 km south
Q21: Syllogism some
Problem: All pens are books. Some books are desks. Conclusion: Some pens are desks?
Solution: No forced overlap between pens and desks. Does not follow.
Answer: Does not follow
Q22: Seating circular
Problem: Four people sit around a square table facing center. A sits opposite C. If B is left of A, who is right of C?
Solution: Opposite pairs A-C. B left of A means clockwise B. Right of C is B.
Answer: B
Timed practice tips for BrowserStack
- First pass: only high-confidence questions
- Mark and skip time sinks early
- Keep verbal accuracy high - these are easy marks if you stay calm
- Run the mock quiz at least three times a week under real timing
- Sleep properly the night before; fatigue hurts DI and calculation accuracy
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