Preparation guide
ABB Aptitude Questions
Overview
This page has ABB aptitude questions with full solutions - numerical ability, verbal, and logical reasoning - in the style students report for the ABB Online Test. Start with the timed mock quiz, then work the solved set and log every miss by topic.
ABB 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 can complete a work in 12 days, B in 15 days, and C in 20 days. If they work together, in how many days will they complete the work?
Let total work = LCM of 12, 15, 20 = 60 units A's efficiency = 60/12 = 5 units/day B's efficiency = 60/15 = 4 units/day C's efficiency = 60/20 = 3 units/day Combined efficiency = 5 + 4 + 3 = 12 units/day Time taken = 60/12 = 5 days
Quantitative
If all roses are flowers, and some flowers are red, which must be true?
From "all roses are flowers" and "some flowers are red", we cannot conclude about roses being red. But "some red things are flowers" must be true.
Quantitative
Convert to passive voice: "The teacher explained the lesson."
Passive voice: "The lesson was explained by the teacher."
Reasoning
Statements: 1) Some boxes are cars, 2) Some cars are roads Conclusions: I) Some roads are boxes, II) Some cars are boxes, III) No box is a road, IV) Some roads are cars.
Correct answer: Only II and IV follow
Verbal
Antonym of "Optimistic":
Optimistic ↔ pessimistic.
Quantitative
Select 3 people from 10 for a committee. How many ways?
Correct answer: C(10,3) = 10!/(3!×7!) = 120
Quantitative
The average age of a class of 30 students is 20 years. If the teacher's age is included, the average becomes 21 years. Find the teacher's age.
Correct answer: 51 years
Verbal
Problem: "She is allergic _____ peanuts." a) to b) from c) with d) by
"Allergic to" is the correct prepositional phrase.
Reasoning
Odd one out: 8, 27, 64, 100, 125
Others are perfect cubes; 100 is not.
Reasoning
Find the next number: 2, 5, 11, 23, 47, ?
Pattern: Each number = previous × 2 + 1 2×2+1=5, 5×2+1=11, 11×2+1=23, 23×2+1=47 Next: 47×2+1 = 95
Verbal
Antonym of "Benevolent":
Benevolent ↔ malevolent.
Verbal
Find the synonym of "Benevolent".
Correct answer: Kind
Quantitative
A team can process loan applications in 10 days. Another team can do it in 15 days. How long if they work together?
Correct answer: 6 days
Reasoning
Find the next number: 1, 8, 27, 64, 125, ?
Correct answer: 216
Reasoning
If every letter is shifted +2 in the alphabet, CODE becomes:
Each letter +2 → EQFG.
Your score
0/15(0%)
Review
ABB 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: Deck probability
Problem: What is the probability of drawing an ace from a standard 52-card deck?
Solution: There are 4 aces in 52 cards. Probability = 4/52 = 1/13.
Answer: 1/13
Q2: Work efficiency
Problem: A is twice as efficient as B. Together they finish in 12 days. How many days does A alone need?
Solution: Let B = x days, A = x/2. 1/(x/2) + 1/x = 1/12 → 2/x + 1/x = 1/12 → 3/x = 1/12 → x = 36. A alone = 18 days.
Answer: 18 days
Q3: Geometry triangle
Problem: A right triangle has legs 6 and 8. Hypotenuse?
Solution: √(36+64)=√100=10.
Answer: 10
Q4: Loss to profit shift
Problem: An article sold at 10% loss would give 5% profit if sold for ₹60 more. Find the cost price.
Solution: 0.9P + 60 = 1.05P 60 = 0.15P P = 60 / 0.15 = ₹400.
Answer: ₹400
Q5: Man days leftover
Problem: 15 men can do a job in 20 days. After 5 days, 5 men leave. How many more days to finish?
Solution: Work done in 5 days = 15×5 = 75 man-days. Total = 300. Left = 225. Remaining men = 10. Days = 225/10 = 22.5 days.
Answer: 22.5 days
Q6: 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
Q7: SI three years
Problem: Find simple interest on ₹5000 at 8% per annum for 3 years.
Solution: SI = 5000 × 8 × 3 / 100 = ₹1200.
Answer: ₹1200
Q8: Square garden path
Problem: A square park of side 40 m has a 2 m wide path outside. Area of the path?
Solution: Outer side = 44. Outer area = 1936. Inner = 1600. Path = 336 m².
Answer: 336 m²
Q9: Marked price discount
Problem: A shopkeeper marks goods 20% above cost and then gives a 10% discount. What is the profit percentage?
Solution: Let CP = ₹100. Marked price = ₹120. Discount = 10% of 120 = ₹12. SP = 120 − 12 = ₹108. Profit % = 8%.
Answer: 8%
Q10: 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°
Verbal ability questions
Q11: Error spotting tense
Problem: Identify the error: He go to school yesterday.
Solution: Past time marker needs past tense: went.
Answer: go → went
Q12: Synonym - mitigate
Problem: Choose the best synonym of ‘mitigate’.
Solution: ‘Mitigate’ means to make less severe. Closest match: alleviate.
Answer: Alleviate
Q13: Antonym - opaque
Problem: Choose the best antonym of ‘opaque’.
Solution: ‘Opaque’ means not transparent. Opposite: transparent / clear.
Answer: Transparent
Q14: Synonym - resilient
Problem: Best synonym of ‘resilient’?
Solution: Able to recover quickly → tough / flexible.
Answer: Tough / adaptable
Q15: One-word substitution
Problem: A person who speaks many languages is called a:
Solution: Polyglot.
Answer: Polyglot
Q16: One word - extinct
Problem: A species that no longer exists is?
Solution: Extinct.
Answer: Extinct
Reasoning ability questions
Q17: Odd one out
Problem: Find the odd one out: 3, 5, 7, 9, 11
Solution: 3, 5, 7, and 11 are prime. 9 = 3×3 is composite, so it is the odd one out.
Answer: 9
Q18: 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
Q19: 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
Q20: Puzzle order
Problem: P finishes before Q but after R. S finishes after Q. Who finished first?
Solution: Order: R, P, Q, S. First is R.
Answer: R
Q21: Coding letter shift
Problem: If CAT is coded as DBU, how is DOG coded in the same way?
Solution: Each letter moves +1 in the alphabet: C→D, A→B, T→U. D→E, O→P, G→H → EPH.
Answer: EPH
Q22: Blood relation
Problem: Pointing to a photograph, Ravi says, ‘She is the daughter of my mother’s only son.’ How is the girl related to Ravi?
Solution: Ravi’s mother’s only son is Ravi himself (assuming one son). The girl is therefore Ravi’s daughter.
Answer: Daughter
Timed practice tips for ABB
- 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