Preparation guide
Texas Instruments Aptitude Questions
Overview
This page has Texas Instruments aptitude questions with full solutions - numerical ability, verbal, and logical reasoning - in the style students report for the TI Online Test. Start with the timed mock quiz, then work the solved set and log every miss by topic.
Texas Instruments 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
Verbal
The idiom "add fuel to the fire" means:
It means: make a situation worse.
Reasoning
If A is brother of B, B is sister of C, C is brother of D, how is D related to A?
A, B, C, D share the same generation → siblings (gender of D unknown but sibling).
Quantitative
Simple interest on ₹5,000 at 8% p.a. for 3 years is:
SI = PRT/100 = 5000×8×3/100 = ₹1,200.
Quantitative
Successive discounts 20% and 15%. Effective discount:
100 → 80 → 68 → 32% off.
Verbal
Antonym of "Complex":
Complex ↔ simple.
Reasoning
Find the next number: 8, 6, 9, 7, 10, ?
−2,+3 alternating → 10-2=8 → 8.
Verbal
Choose the correct form: "If I _____ rich, I would travel the world."
Second conditional uses "were" for all subjects (subjunctive mood).
Quantitative
Reading Comprehension (2024 - Real Question)
According to the passage, a major consequence was a significant increase in urban populations due to migration for work opportunities.
Quantitative
Find the compound interest on ₹8000 for 3 years at 5% per annum, compounded annually.
Correct answer: ₹1261
Reasoning
If BOOK is coded as 43 (sum of letter positions), PEN is coded as:
P+E+N = 16+5+14 = 35.
Reasoning
Two trains of lengths 100m and 150m are running in the same direction at speeds of 50 km/hr and 40 km/hr respectively. Find the time taken by faster train to overtake the slower train.
Relative speed = 50 - 40 = 10 km/hr = 10 × 5/18 = 25/9 m/s Distance to cover = 100 + 150 = 250m Time = 250 / (25/9) = 250 × 9/25 = 90 seconds
Quantitative
A number is increased by 20% and then decreased by 20%. The net percentage change is:
100 → 120 → 96. Net change = 4% decrease.
Verbal
Choose the correct preposition: The meeting will be held _____ 3 PM.
Correct answer: at
Quantitative
Price rises by 25%. By what % should consumption fall to keep expenditure the same?
Reduction = 25/(100+25)×100 = 20%.
Reasoning
If in a certain code, FLOOR is written as EKNQQ, how is TABLE written?
Each letter −1: T→S, A→Z, B→A, L→K, E→D → SZAKD.
Your score
0/15(0%)
Review
Texas Instruments 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: Population growth
Problem: A town’s population is 20,000. It grows 10% yearly. Population after 2 years?
Solution: After 2 years: 20000 × 1.1 × 1.1 = 24200.
Answer: 24,200
Q2: 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
Q3: Cube surface
Problem: A cube has side 6 cm. What is its total surface area?
Solution: TSA = 6a² = 6 × 36 = 216 cm².
Answer: 216 cm²
Q4: 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
Q5: Partnership share
Problem: A and B invest ₹40,000 and ₹60,000. If profit is ₹25,000, what is A’s share?
Solution: Ratio A:B = 2:3. A’s share = (2/5) × 25000 = ₹10,000.
Answer: ₹10,000
Q6: 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
Q7: 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
Q8: Geometry triangle
Problem: A right triangle has legs 6 and 8. Hypotenuse?
Solution: √(36+64)=√100=10.
Answer: 10
Q9: CI vs SI hint
Problem: Find compound interest on ₹10,000 at 10% per annum for 2 years, compounded annually.
Solution: Amount = 10000 × (1.1)² = 10000 × 1.21 = ₹12,100. CI = 12100 − 10000 = ₹2100. (SI for same period would be ₹2000; the extra ₹100 is interest on first-year interest.)
Answer: ₹2100
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: Antonym - verbose
Problem: Best antonym of ‘verbose’?
Solution: Verbose = wordy. Opposite: concise.
Answer: Concise
Q12: Fill blank preposition
Problem: She is good _____ mathematics. (in / at / on / of)
Solution: Standard collocation: good at.
Answer: at
Q13: Error spotting subject
Problem: Identify the error: The list of items are on the table.
Solution: ‘List’ is singular → ‘is’ not ‘are’.
Answer: are → is
Q14: Antonym - scarce
Problem: Choose the best antonym of ‘scarce’.
Solution: ‘Scarce’ means in short supply. Opposite: abundant.
Answer: Abundant
Q15: Idiom
Problem: What does ‘hit the nail on the head’ mean?
Solution: It means to describe exactly what is causing a situation or problem; to be precisely right.
Answer: To be exactly right
Q16: Antonym - benevolent
Problem: Choose the best antonym of ‘benevolent’.
Solution: ‘Benevolent’ means kind or well-meaning. Opposite: malevolent.
Answer: Malevolent
Reasoning ability questions
Q17: Syllogism
Problem: Statements: All engineers are graduates. Some graduates are managers. Conclusion: Some engineers are managers. Does it follow?
Solution: The ‘some graduates’ who are managers need not overlap with the engineers. The conclusion does not follow necessarily.
Answer: Does not follow
Q18: Odd one shapes
Problem: Odd one out: Circle, Square, Triangle, Cube
Solution: Cube is 3D; others are 2D shapes.
Answer: Cube
Q19: Direction turn
Problem: A person walks 5 km north, then 3 km east, then 5 km south. How far is he from the start, and in which direction?
Solution: North 5 and south 5 cancel. He is 3 km east of the start.
Answer: 3 km east
Q20: Series multiply
Problem: Find the next number: 3, 9, 27, 81, ?
Solution: Each term is multiplied by 3. Next = 81 × 3 = 243.
Answer: 243
Q21: Seating hint
Problem: Five friends sit in a row. A is to the left of B but right of C. D is to the right of B and left of E. Who is in the middle?
Solution: Order from left to right: C, A, B, D, E. The middle seat is B.
Answer: B
Q22: Analogy
Problem: Book is to Reading as Fork is to ?
Solution: A book is used for reading; a fork is used for eating.
Answer: Eating
Timed practice tips for Texas Instruments
- 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