HCF LCM Quiz
Practice quiz on HCF LCM (Quantitative Aptitude). 10 exam-style questions with explanations.
About This Quiz
HCF LCM 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 LCM of 6 and 8 is
- A.48
- B.12
- C.14
- D.24
Show answer
Answer: D. 24
24.
Q2.The HCF of 36 and 48 is
- A.12
- B.24
- C.18
- D.6
Show answer
Answer: A. 12
12.
Q3.The product of two numbers is 216 and their HCF is 6. Their LCM is
- A.12
- B.36
- C.18
- D.72
Show answer
Answer: B. 36
216/6.
Q4.The LCM of 12, 15 and 20 is
- A.60
- B.120
- C.180
- D.30
Show answer
Answer: A. 60
60.
Q5.The HCF of 54 and 72 is
- A.18
- B.36
- C.6
- D.9
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Answer: A. 18
18.
Q6.The LCM of two co-prime numbers 7 and 9 is
- A.9
- B.63
- C.16
- D.1
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Answer: B. 63
Product.
Q7.The HCF and LCM of two numbers are 5 and 60. If one number is 15, the other is
- A.20
- B.12
- C.25
- D.30
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Answer: A. 20
300/15.
Q8.The smallest number divisible by 4, 6 and 10 is
- A.30
- B.60
- C.40
- D.120
Show answer
Answer: B. 60
LCM = 60.
Q9.The LCM of 8 and 12 is
- A.36
- B.24
- C.48
- D.96
Show answer
Answer: B. 24
24.
Q10.The largest 3-digit number divisible by both 6 and 8 is
- A.996
- B.992
- C.984
- D.960
Show answer
Answer: C. 984
Multiples of 24: 984.
Frequently Asked Questions
Is HCF LCM Quiz free to attempt on AajExam?
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How long does it take to complete HCF LCM Quiz?
HCF LCM 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 HCF LCM 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 HCF LCM 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?
LCM & HCF 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.