Aptitude
Drills
Mastercard placement papers 2024
Overview
Section titled “Overview”Mastercard placement papers 2024. Primary filter: Mastercard Codility / OA. Focus: DSA, payments concepts, system design.
Mastercard 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
Reasoning
Find the next number: 6, 11, 21, 41, ?
×2−1 pattern → 81.
Quantitative
A number is first increased by 25% and then decreased by 20%. Find the net percentage change.
Let number = 100 After 25% increase: 100 + 25 = 125 After 20% decrease: 125 - 20% of 125 = 125 - 25 = 100 Net change = 0%
Quantitative
The ratio of ages of A and B is 3:5. After 10 years, the ratio becomes 5:7. Find the present age of A.
Let present ages be 3x and 5x After 10 years: (3x + 10)/(5x + 10) = 5/7 7(3x + 10) = 5(5x + 10) 21x + 70 = 25x + 50 4x = 20 x = 5 A's present age = 3 × 5 = 15 years
Reasoning
If BOOK is coded as 43 (sum of letter positions), PEN is coded as:
P+E+N = 16+5+14 = 35.
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
A sum of money amounts to ₹9800 after 5 years and ₹12005 after 8 years at the same rate of simple interest. Find the rate of interest per annum.
Let Principal = P, Rate = R% After 5 years: P + (P × R × 5)/100 = 9800 After 8 years: P + (P × R × 8)/100 = 12005 Subtracting: (P × R × 3)/100 = 12005 - 9800 = 2205 P × R = 73500 From first equation: P + (73500 × 5)/100 = 9800 P + 3675 = 9800 P = 6125 Rate R =
Verbal
Fill in: She is good _____ mathematics.
Good at a subject.
Quantitative
A shopkeeper gives two successive discounts of 10% and 20% on an item. What is the effective discount percentage?
Let MP = ₹100 After first discount: 100 - 10% = ₹90 After second discount: 90 - 20% = ₹72 Effective discount = (100 - 72) / 100 × 100 = 28%
Reasoning
Find the next number: 5, 10, 20, 40, ?
×2 each → 80.
Verbal
Synonym of "Abundant":
Abundant means plentiful.
Quantitative
A number is increased by 25% and then decreased by 25%. Find the net percentage change.
Let original number = 100 After 25% increase: 100 + 25 = 125 After 25% decrease: 125 - (25% of 125) = 125 - 31.25 = 93.75 Net change = 100 - 93.75 = 6.25 Net percentage change = (6.25/100) × 100 = 6.25% decrease
Reasoning
In a row of 40 students, A is 11th from left. Rank from right is:
From right = 40 − 11 + 1 = 30.
Verbal
Identify the correctly spelled word:
Accommodate has double "c" and double "m".
Quantitative
Find the HCF of 24 and 36.
Correct answer: 12
Verbal
A shopkeeper buys an article for ₹500 and sells it for ₹600. Find his profit percentage.
Correct answer: 20%
Your score
0/15(0%)
Review
Sample Mastercard Questions with Solutions
Section titled “Sample Mastercard Questions with Solutions”Practice-style questions (not leaked live papers).
Coding Practice
Section titled “Coding Practice”Coding Q1: Valid parentheses
Approach: Stack matching.
Complexity: O(n)
Mastercard tip: Narrate brute force then optimize then edge cases before coding.
Coding Q2: Two Sum
Approach: Hash map complements.
Complexity: O(n)
Mastercard tip: Narrate brute force then optimize then edge cases before coding.
Coding Q3: Longest substring without repeat
Approach: Sliding window + last index.
Complexity: O(n)
Mastercard tip: Narrate brute force then optimize then edge cases before coding.
Coding Q4: Merge intervals
Approach: Sort + merge.
Complexity: O(n log n)
Mastercard tip: Narrate brute force then optimize then edge cases before coding.
Coding Q5: Top K frequent
Approach: Count + heap.
Complexity: O(n log k)
Mastercard tip: Narrate brute force then optimize then edge cases before coding.
Coding Q6: Linked list cycle
Approach: Floyd tortoise-hare.
Complexity: O(1) space
Mastercard tip: Narrate brute force then optimize then edge cases before coding.
Coding Q7: Level order traversal
Approach: BFS queue.
Complexity: O(n)
Mastercard tip: Narrate brute force then optimize then edge cases before coding.
Coding Q8: Coin change min coins
Approach: DP unbounded.
Complexity: O(amount*coins)
Mastercard tip: Narrate brute force then optimize then edge cases before coding.
Coding Q9: Binary search
Approach: Lo/hi mid.
Complexity: O(log n)
Mastercard tip: Narrate brute force then optimize then edge cases before coding.
Coding Q10: Kadane max subarray
Approach: Running best.
Complexity: O(n)
Mastercard tip: Narrate brute force then optimize then edge cases before coding.
Deep Prep Notes for Mastercard
Section titled “Deep Prep Notes for Mastercard”How the Mastercard Codility / OA Usually Feels
Section titled “How the Mastercard Codility / OA Usually Feels”Candidates describe a paced filter where easy marks disappear if you over-invest in one hard item. For Mastercard, start with a three-minute scan, mark certainty levels, and protect accuracy. Languages typically include Java, Python, C++.
Topic Weight Hints (Candidate-Reported)
Section titled “Topic Weight Hints (Candidate-Reported)”| Area | Why it matters at Mastercard |
|---|---|
| DSA | Primary shortlist signal |
| Core CS (OOPs/DBMS/OS) | Technical interview depth |
| Payments Networks 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
DSA
OA
Assessment
Hub
Mastercard
Similar Companies
Section titled “Similar Companies”Visa · PayPal · American Express · PhonePe · Stripe · Google