Prep Guide
Plan
BlackRock aptitude questions
Overview
Section titled “Overview”Practice BlackRock aptitude questions for BlackRock Online Assessment.
BlackRock 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 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 =
Reasoning
Which of the following is the next term in the series: 2, 6, 12, 20, 30, ?
Pattern: Differences are 4, 6, 8, 10 (consecutive even numbers) Next difference = 12 Next term = 30 + 12 = 42 Alternative pattern: n(n+1) where n starts from 1 1×2=2, 2×3=6, 3×4=12, 4×5=20, 5×6=30, 6×7=42
Quantitative
What does "Break the ice" mean?
"Break the ice" means to initiate conversation in a social setting.
Quantitative
A student scored 60, 70, and 80 in three subjects. If the weights are 2, 3, and 5 respectively, find the weighted average.
Correct answer: 73
Quantitative
Simple interest on ₹5,000 at 8% p.a. for 3 years is:
SI = PRT/100 = 5000×8×3/100 = ₹1,200.
Verbal
Problem: "She is allergic _____ peanuts." a) to b) from c) with d) by
"Allergic to" is the correct prepositional phrase.
Verbal
Choose the correctly spelled word:
Correct spelling is Accommodation.
Verbal
Synonym of "Candid":
Candid means frank or straightforward.
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
A person walks 6 km East, then 8 km North. How far is he from the starting point?
Correct answer: 10 km
Reasoning
In how many ways can 5 people be arranged in a row?
Correct answer: 120 ways
Reasoning
Statements: 1) All cups are plates, 2) All plates are tables Conclusions: I) All cups are tables, II) All tables are cups, III) Some tables are cups, IV) Some tables are plates.
Correct answer: Only I, III, and IV follow
Reasoning
Odd one out: Cat, Dog, Tiger, Car
Others are animals.
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
The company's profits have been _____ steadily over the past year.
Correct answer: declining
Your score
0/15(0%)
Review
Question 1
Section titled “Question 1”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.
Question 2
Section titled “Question 2”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.
Question 3
Section titled “Question 3”Simple interest on Rs.8000 at 10% for 2 years?
Answer: Rs.1600
Explanation: SI = PRT/100 = 1600.
Question 4
Section titled “Question 4”If 30% of x = 150, x = ?
Answer: 500
Explanation: 0.3x=150 => x=500.
Question 5
Section titled “Question 5”Average of 5 numbers is 20. One number 30 replaced by 10. New average?
Answer: 16
Explanation: Sum 100 -> 80; avg 16.
Question 6
Section titled “Question 6”A finishes in 10 days, B in 15. Together?
Answer: 6 days
Explanation: 1/10+1/15=1/6.
Question 7
Section titled “Question 7”Probability of drawing an ace from a deck?
Answer: 1/13
Explanation: 4/52=1/13.
Question 8
Section titled “Question 8”Pipe A fills in 6h, B in 8h. Together to fill?
Answer: 24/7 hours
Explanation: 1/6+1/8=7/24.
Question 9
Section titled “Question 9”CP Rs.500, SP Rs.600. Profit percent?
Answer: 20%
Explanation: (100/500)*100=20%.
Question 10
Section titled “Question 10”Find next: 2, 6, 12, 20, 30, ?
Answer: 42
Explanation: n(n+1) pattern.
Extra Drill Set (BLACKROCK flavor)
Section titled “Extra Drill Set (BLACKROCK flavor)”Q17: A finishes work in 14 days, B in 17 days. Days together?
Rate = 1/14 + 1/17. Days = reciprocal of that sum.
Answer: compute exactly before the exam; practice the fraction form daily.
Q18: Price increases by 22%. Consumption reduction to keep spend constant?
Reduction % = r/(100+r)×100 with r=22.
Answer: 22/(100+22)×100 (simplify).
Q19: Average of 7 numbers is 18. One number 24 replaced by 10. New average?
Sum 126 → 112 → average 16.
Answer: 16
Q20: SI on ₹8000 at 7.5% for 2 years?
SI = 8000×7.5×2/100 = ₹1200.
Answer: ₹1200
Q21: Synonym of “Mitigate”
Answer: Alleviate / reduce
Q22: Series: 3, 9, 27, 81, ?
Multiply by 3 → 243.
Answer: 243
Q23: If NORTH is coded as 13 (letter count? or positions), prefer position-sum drills for your mock bank.
Practice coding-decoding patterns: +1/−1, reverse, position sums.
Answer: pattern-dependent; master 4 common patterns.
Q24: All engineers are graduates. Some graduates are managers. Conclusion: some engineers are managers?
Does not follow necessarily.
Answer: Does not follow
Related
Section titled “Related”Coding
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