BrowserStack 2026 aptitude
Quantitative, reasoning, and verbal drills with solutions
Browserstack 2026 Pattern Details
Overview
This page collects BrowserStack placement papers from 2026 with practice questions, worked solutions, and the exam pattern students reported that cycle. Use it when you want drive history: what the first round looked like, which topics repeated, and how to approach solutions. Work the sets below under a timer, then compare with newer material so your prep matches both established BrowserStack patterns and recent shifts.
Download / jump links
BrowserStack 2026 coding
DSA practice aligned to BrowserStack online assessments
BrowserStack interview experience
Round structure and tips from student reports
BrowserStack prep guide
Study plan and weekly schedule
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 exam pattern 2026
| Section | What shows up | Prep focus |
|---|---|---|
| Online assessment | Coding and/or MCQ filter | Weekly timed mocks |
| Technical rounds | DSA, CS fundamentals, projects | Live problem solving |
| HR / hiring manager | Motivation and communication | Specific, evidence-based answers |
First round: BrowserStack OA
Skills emphasized: DSA, systems, testing mindset
Languages: Java, JavaScript, Python, Go
Sample BrowserStack questions with solutions
These are practice-style questions aligned to patterns students report for BrowserStack drives around 2026. They are not leaked live papers. Work them timed, then read the solutions only after you have an answer.
Quantitative aptitude (2026)
Q1: Clock angle
Problem: What is the angle between the hour and minute hands at 3:00?
Solution: At 3:00 the hands are exactly 90° apart (one quarter of the circle).
Answer: 90°
Q2: Permutation basic
Problem: In how many ways can 5 different books be arranged on a shelf?
Solution: Arrangements of 5 distinct items = 5! = 120.
Answer: 120
Q3: Consecutive integers
Problem: If the sum of three consecutive integers is 72, what is the smallest of these integers?
Solution: Let the integers be x, x+1, and x+2.
x + (x+1) + (x+2) = 72 3x + 3 = 72 3x = 69 x = 23
So the integers are 23, 24, and 25.
Answer: 23
Q4: Train and pole
Problem: A train 150 meters long passes a pole in 15 seconds. What is its speed in km/h?
Solution: Distance = 150 m = 0.15 km. Time = 15 s = 15/3600 h = 1/240 h. Speed = 0.15 ÷ (1/240) = 0.15 × 240 = 36 km/h.
Faster check: 150/15 = 10 m/s → 10 × 18/5 = 36 km/h.
Answer: 36 km/h
Q5: Profit on a pen
Problem: If the cost price of a pen is ₹40 and it is sold at a 25% profit, what is the selling price?
Solution: Profit = 25% of 40 = ₹10. Selling price = 40 + 10 = ₹50.
Or SP = CP × 1.25 = 40 × 1.25 = ₹50.
Answer: ₹50
Q6: A and B together
Problem: A can finish a job in 10 days and B in 20 days. How long will they take working together?
Solution: A’s one-day work = 1/10. B’s one-day work = 1/20. Together = 1/10 + 1/20 = 3/20 per day. Time = 20/3 ≈ 6.67 days (6 days 16 hours).
Answer: 20/3 days
Q7: Sum of naturals
Problem: What is the sum of the first 50 natural numbers?
Solution: Sum of first n naturals = n(n+1)/2. For n = 50: 50 × 51 / 2 = 1275.
Answer: 1275
Q8: Average speed
Problem: A person covers a distance at 60 km/h and returns at 40 km/h. What is the average speed for the whole trip?
Solution: For equal distances, average speed = 2ab/(a+b). = 2×60×40 / (60+40) = 4800/100 = 48 km/h.
Do not take the arithmetic mean (50); that would be wrong here.
Answer: 48 km/h
Coding practice (2026)
Coding Q1: First unique character
Problem: Find the first non-repeating character in a string and return its index, or -1 if none exists.
Approach: Count frequencies in one pass (hash map or array of 26 for lowercase). Second pass returns the first index with count 1.
Complexity: O(n) time
BrowserStack tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.
Coding Q2: Stack with min
Problem: Design a stack that supports push, pop, top, and getMin in average O(1) time.
Approach: Keep a parallel min-stack (or store pairs). When pushing, also push the new minimum. When popping, pop both stacks.
Complexity: O(1) per operation amortized
BrowserStack tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.
Coding Q3: Maximum subarray sum (Kadane)
Problem: Given an integer array, find the contiguous subarray with the largest sum and return that sum. Example: [-2,1,-3,4,-1,2,1,-5,4] → 6 (from [4,-1,2,1]).
Approach: Keep a running sum. If the running sum drops below 0, reset it to 0 before taking the next element (or track the best ending-here value). Track the global maximum as you scan once from left to right.
Complexity: O(n) time, O(1) extra space
BrowserStack tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.
Coding Q4: Reverse a string in place
Problem: Given a mutable character array representing a string, reverse it in place without allocating another array of the same size.
Approach: Use two pointers at the start and end. Swap characters, then move inward until the pointers meet. Watch empty and single-character inputs.
Complexity: O(n) time, O(1) extra space
BrowserStack tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.
Coding Q5: Check prime
Problem: Write a function that returns true if n is prime and false otherwise. Handle n < 2 correctly.
Approach: Return false for n < 2. Trial-divide from 2 to floor(sqrt(n)). If any divisor divides n evenly, it is composite; otherwise prime.
Complexity: O(√n) time
BrowserStack tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.
Coding Q6: Valid parentheses
Problem: Given a string containing only ‘()[]’, decide whether the brackets are balanced and correctly nested.
Approach: Scan left to right with a stack. Push opening brackets. On a closing bracket, the stack top must be the matching opener. At the end the stack must be empty.
Complexity: O(n) time, O(n) space
BrowserStack tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.
Coding Q7: Two Sum
Problem: Given an array of integers and a target, return indices of two numbers that add up to the target. Assume exactly one solution and you may not use the same element twice.
Approach: Walk the array once. For each value x, check whether target − x was seen earlier in a hash map of value → index. If yes, return both indices; else store x.
Complexity: O(n) time, O(n) space
BrowserStack tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.
Coding Q8: Longest substring without repeating characters
Problem: Given a string s, find the length of the longest substring without repeating characters. Example: ‘abcabcbb’ → 3 (‘abc’).
Approach: Sliding window with a map (or last-seen index) of characters. Expand the right pointer; when a duplicate appears inside the window, move the left pointer past the previous occurrence.
Complexity: O(n) time
BrowserStack tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.
Deep prep notes for BrowserStack
How the BrowserStack OA usually feels
Students usually say the first round is time-tight - easy marks vanish if you sit too long on one hard question. For BrowserStack, skim the paper in a couple of minutes, mark what you can finish cleanly, and protect accuracy. Languages people commonly use: Java, JavaScript, Python, Go.
Topic weight hints
| Area | Why it matters at BrowserStack |
|---|---|
| DSA | What usually helps you clear the first round |
| Core CS (OOPs / DBMS / OS) | Technical interview depth |
| Software Testing Cloud awareness | Helps in managerial / HR conversations |
| Communication | Explain your approach clearly; keep a few real examples ready for HR |
14-Day sprint
- Days 1-3: Learn the 2026 pattern and take two sectional mocks
- Days 4-7: Closed practice on weak topics from your error log
- Days 8-10: Full mocks every other day; review the same day
- Days 11-14: Practice explaining projects out loud, light revision, sleep and IDs ready
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