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Unacademy Aptitude Questions

Overview

This page has Unacademy aptitude questions with full solutions - numerical ability, verbal, and logical reasoning - in the style students report for the Unacademy Online Assessment. Start with the timed mock quiz, then work the solved set and log every miss by topic.

Unacademy 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

Unacademy 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: Speed convert

Problem: Convert 18 m/s to km/h.

Solution: Multiply by 18/5: 18 × 18/5 = 64.8 km/h.

Answer: 64.8 km/h

Q2: 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

Q3: Percentage recover

Problem: If 30% of a number is 150, what is the number?

Solution: 0.3x = 150 → x = 150 / 0.3 = 500.

Answer: 500

Q4: Worker scaling

Problem: Eight workers finish a job in 10 days. How many days will 10 workers take for the same job (same pace)?

Solution: Total man-days = 8 × 10 = 80. Days for 10 workers = 80 / 10 = 8 days.

Answer: 8 days

Q5: 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

Q6: Train platforms

Problem: A 200 m train at 72 km/h crosses a 160 m platform. Time taken?

Solution: Speed = 72 × 5/18 = 20 m/s. Distance = 200+160 = 360 m. Time = 360/20 = 18 s.

Answer: 18 seconds

Q7: Algebra ages

Problem: Father is 3 times as old as son. After 12 years he will be twice as old. Son’s present age?

Solution: 3x + 12 = 2(x + 12) → 3x + 12 = 2x + 24 → x = 12.

Answer: 12 years

Q8: 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

Q9: Remainder theorem style

Problem: Find remainder when 7^3 is divided by 5.

Solution: 343 ÷ 5: 5×68=340, remainder 3. Or 7≡2 mod 5; 2³=8≡3.

Answer: 3

Q10: Geometry triangle

Problem: A right triangle has legs 6 and 8. Hypotenuse?

Solution: √(36+64)=√100=10.

Answer: 10

Verbal ability questions

Q11: Idiom - hit the nail

Problem: What does ‘hit the nail on the head’ mean?

Solution: To describe exactly the right point.

Answer: Be exactly right

Q12: Idiom - piece of cake

Problem: What does ‘a piece of cake’ mean?

Solution: It means something very easy.

Answer: Very easy

Q13: Antonym - opaque

Problem: Choose the best antonym of ‘opaque’.

Solution: ‘Opaque’ means not transparent. Opposite: transparent / clear.

Answer: Transparent

Q14: Antonym - scarce

Problem: Choose the best antonym of ‘scarce’.

Solution: ‘Scarce’ means in short supply. Opposite: abundant.

Answer: Abundant

Q15: Synonym - obsolete

Problem: Choose the best synonym of ‘obsolete’.

Solution: ‘Obsolete’ means no longer in use. Closest: outdated.

Answer: Outdated

Q16: Synonym - candid

Problem: Choose the best synonym of ‘candid’.

Solution: ‘Candid’ means frank or straightforward. Closest: frank.

Answer: Frank

Reasoning ability questions

Q17: Venn conclusion

Problem: Some doctors are teachers. All teachers are writers. Conclusion: Some doctors are writers?

Solution: Some doctors who are teachers must be writers. Follows.

Answer: Follows

Q18: Analogy tool

Problem: Hammer is to Nail as Pen is to ?

Solution: Hammer drives nail; pen writes (on paper/ink). Best: Paper / Writing.

Answer: Paper

Q19: Number series gap

Problem: Find the missing number: 5, 11, 23, 47, ?

Solution: ×2+1 pattern: 5→11→23→47→95.

Answer: 95

Q20: 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

Q21: Input output step

Problem: Input: 34 12 57 23. Step1 sorts ascending: 12 23 34 57. What is Step1 third element?

Solution: Sorted: 12, 23, 34, 57. Third = 34.

Answer: 34

Q22: Cause effect

Problem: Cause: Heavy rain overnight. Which is a likely effect?

Solution: Waterlogging / traffic delays are likely effects.

Answer: Waterlogging / delays

Timed practice tips for Unacademy

  1. First pass: only high-confidence questions
  2. Mark and skip time sinks early
  3. Keep verbal accuracy high - these are easy marks if you stay calm
  4. Run the mock quiz at least three times a week under real timing
  5. Sleep properly the night before; fatigue hurts DI and calculation accuracy

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