Cubes Quiz
Practice quiz on Cubes (Numerical & Mental Ability). 10 exam-style questions with explanations.
About This Quiz
Cubes Quiz — Questions with Solutions
All 10 questions from this quiz with the correct answer and explanation. Attempt them yourself first, then open each solution to check your reasoning.
Q1.The cube of 5 is
- A.125
- B.75
- C.15
- D.25
Show answer
Answer: A. 125
5 x 5 x 5 = 125.
Q2.The cube of 8 is
- A.216
- B.512
- C.64
- D.256
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Answer: B. 512
8^3 = 512.
Q3.Which of the following is a perfect cube?
- A.400
- B.300
- C.500
- D.343
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Answer: D. 343
7^3 = 343.
Q4.The cube root of 729 is
- A.8
- B.7
- C.27
- D.9
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Answer: D. 9
9^3 = 729.
Q5.The cube root of 1000 is
- A.10
- B.20
- C.100
- D.30
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Answer: A. 10
10^3 = 1000.
Q6.The value of 3^3 + 4^3 is
- A.81
- B.91
- C.64
- D.72
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Answer: B. 91
27 + 64 = 91.
Q7.The cube of 12 is
- A.1296
- B.1458
- C.1000
- D.1728
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Answer: D. 1728
12^3 = 1728.
Q8.The cube of 0.2 is
- A.0.8
- B.0.008
- C.0.04
- D.0.08
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Answer: B. 0.008
0.2^3 = 0.008.
Q9.The smallest number by which 54 must be multiplied to get a perfect cube is
- A.4
- B.2
- C.3
- D.6
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Answer: A. 4
54 = 2 x 3^3, so multiply by 4.
Q10.How many cubes of side 2 cm fit in a cube of side 6 cm?
- A.9
- B.27
- C.18
- D.36
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Answer: B. 27
(6/2)^3 = 27.
Frequently Asked Questions
Is Cubes Quiz free to attempt on AajExam?
Yes. Cubes Quiz is completely free. You only need a free AajExam account to track your score, view detailed solutions and unlock cross-attempt analytics.
How long does it take to complete Cubes Quiz?
Cubes Quiz runs on a 10-minute timer in real exam-style conditions. The clock starts the moment you click Start, mirroring the time pressure of the actual exam.
Are detailed solutions provided?
Yes. Every question on Cubes Quiz ships with a complete step-by-step solution, the underlying concept, and (where applicable) shortcut tricks. You can also discuss any question with the AajExam community.
Can I attempt Cubes Quiz multiple times?
Yes. You can attempt this quiz as many times as you like. Each attempt is recorded separately so you can track improvement in score, accuracy and time-management.
Which government exams does this quiz prepare me for?
Square Roots & Cube Roots questions appear regularly in SSC CGL, CHSL, MTS, GD; IBPS PO, Clerk; SBI PO, Clerk; RRB NTPC, Group D; UPSC prelims and most State PSC exams. The specific weightage varies by exam — check the exam pattern on the corresponding AajExam exam page for details.