Aptitude
Drills
Siemens placement papers 2024
Overview
Section titled “Overview”Siemens placement papers 2024. Primary filter: Siemens Online Test. Focus: Aptitude, domain tech, coding for software tracks.
Siemens 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
The sum of ages of 5 children born at intervals of 3 years is 50 years. Find the age of the youngest child.
Let youngest child's age = x Ages: x, x+3, x+6, x+9, x+12 Sum = 5x + 30 = 50 5x = 20 x = 4 years
Reasoning
If every letter is shifted +2 in the alphabet, BAT becomes:
Each letter +2 → DCV.
Quantitative
If 20% of a number is 48, the number is:
Number = 48 × 100/20 = 240.
Verbal
Choose the correctly spelled word:
Correct spelling is Accommodation.
Quantitative
The average of 5 numbers is 42. If one number 32 is removed, the new average is:
Sum = 210. New sum = 178. Average = 178/4 = 44.5.
Reasoning
Statements: All dogs are animals. Some animals are pets. Conclusion: Some dogs are pets.
No definite relation that dogs are pets.
Verbal
A shopkeeper buys an article for ₹500 and sells it for ₹600. Find his profit percentage.
Correct answer: 20%
Quantitative
A person sells a pen at a 25% profit. If the cost price is ₹40, what is the selling price?
Profit = 25% of ₹40 = ₹10 Selling Price = Cost Price + Profit = ₹40 + ₹10 = ₹50
Verbal
Problem: Find the synonym of "ABUNDANT": a) Scarce b) Plentiful c) Limited d) Rare
Abundant means existing in large quantities, so "Plentiful" is the synonym.
Reasoning
Letter Series - BXJ, ETL, HPN, KLP, ?
Correct answer: MHR
Quantitative
The price of a product increased by 20%. By what percentage should consumption be reduced to keep expenditure same?
Let original price = ₹100, consumption = 100 units New price = ₹120 Original expenditure = ₹10,000 New consumption = 10,000 / 120 = 83.33 units Reduction = (100 - 83.33) / 100 × 100 = 16.67%
Reasoning
Find the missing number: 2, 6, 12, 20, 30, ?
Pattern: Differences are 4, 6, 8, 10 (increasing by 2) Next difference = 12 Next number = 30 + 12 = 42
Reasoning
A is taller than B but shorter than C. D is shorter than B. Who is tallest?
C > A > B > D → C is tallest.
Quantitative
Find the compound interest on ₹5000 for 2 years at 10% per annum, compounded annually.
Correct answer: ₹1050
Verbal
Antonym of "Artificial":
Artificial ↔ natural.
Your score
0/15(0%)
Review
Sample Siemens Questions with Solutions
Section titled “Sample Siemens Questions with Solutions”Practice-style questions (not leaked live papers).
Aptitude / Reasoning
Section titled “Aptitude / Reasoning”Q1: Average of 5 numbers is 20. One number 30 replaced by 10. New average?
Answer: 16
Explanation: Sum 100 -> 80; avg 16.
Q2: A finishes in 10 days, B in 15. Together?
Answer: 6 days
Explanation: 1/10+1/15=1/6.
Q3: Probability of drawing an ace from a deck?
Answer: 1/13
Explanation: 4/52=1/13.
Q4: Pipe A fills in 6h, B in 8h. Together to fill?
Answer: 24/7 hours
Explanation: 1/6+1/8=7/24.
Q5: CP Rs.500, SP Rs.600. Profit percent?
Answer: 20%
Explanation: (100/500)*100=20%.
Q6: Find next: 2, 6, 12, 20, 30, ?
Answer: 42
Explanation: n(n+1) pattern.
Q7: A train 120 m long runs at 54 km/h. Time to pass a pole?
Answer: 8 seconds
Explanation: 54 km/h = 15 m/s; t = 120/15 = 8 s.
Q8: Ratio of ages A:B = 4:5. After 6 years = 6:7. A present age?
Answer: 12 years
Explanation: 4x+6 / 5x+6 = 6/7 => x=3 => A=12.
Coding Practice
Section titled “Coding Practice”Coding Q1: Longest substring without repeat
Approach: Sliding window + last index.
Complexity: O(n)
Siemens tip: Narrate brute force then optimize then edge cases before coding.
Coding Q2: Merge intervals
Approach: Sort + merge.
Complexity: O(n log n)
Siemens tip: Narrate brute force then optimize then edge cases before coding.
Coding Q3: Top K frequent
Approach: Count + heap.
Complexity: O(n log k)
Siemens tip: Narrate brute force then optimize then edge cases before coding.
Coding Q4: Linked list cycle
Approach: Floyd tortoise-hare.
Complexity: O(1) space
Siemens tip: Narrate brute force then optimize then edge cases before coding.
Coding Q5: Level order traversal
Approach: BFS queue.
Complexity: O(n)
Siemens tip: Narrate brute force then optimize then edge cases before coding.
Coding Q6: Coin change min coins
Approach: DP unbounded.
Complexity: O(amount*coins)
Siemens tip: Narrate brute force then optimize then edge cases before coding.
Coding Q7: Binary search
Approach: Lo/hi mid.
Complexity: O(log n)
Siemens tip: Narrate brute force then optimize then edge cases before coding.
Coding Q8: Kadane max subarray
Approach: Running best.
Complexity: O(n)
Siemens tip: Narrate brute force then optimize then edge cases before coding.
Coding Q9: Reverse a string in-place
Approach: Two pointers from ends.
Complexity: O(n)/O(1)
Siemens tip: Narrate brute force then optimize then edge cases before coding.
Coding Q10: Check prime
Approach: Trial division to sqrt(n).
Complexity: Handle n<2
Siemens tip: Narrate brute force then optimize then edge cases before coding.
Deep Prep Notes for Siemens
Section titled “Deep Prep Notes for Siemens”How the Siemens Online Test Usually Feels
Section titled “How the Siemens Online Test Usually Feels”Candidates describe a paced filter where easy marks disappear if you over-invest in one hard item. For Siemens, start with a three-minute scan, mark certainty levels, and protect accuracy. Languages typically include C, C++, Java, Python.
Topic Weight Hints (Candidate-Reported)
Section titled “Topic Weight Hints (Candidate-Reported)”| Area | Why it matters at Siemens |
|---|---|
| Aptitude | Primary shortlist signal |
| Core CS (OOPs/DBMS/OS) | Technical interview depth |
| Industrial Automation, Energy, Mobility awareness | Managerial / HR differentiation |
| Communication | Especially for consulting and client-facing GSIs |
14-Day Sprint
Section titled “14-Day Sprint”- Days 1-3: pattern familiarization + 2 sectional mocks
- Days 4-7: weak-topic closed practice
- Days 8-10: full mocks every other day
- Days 11-14: interview narration + light revision
Related
Section titled “Related”Coding
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