SSC GD Number System Questions
2 questions on Number System for SSC GD, including questions from 2024 papers. Each comes with the correct answer and a worked explanation.
- Questions
- 2
- Moderate
- 2
Number System questions with solutions
The HCF and LCM of two numbers are 8 and 96 respectively. If one of the numbers is 24, what is the other number?
- (A)40
- (B)24
- (C)4
- (D)32
Show answer and explanation
Correct answer: (D) 32
For any two numbers, product of the numbers = HCF × LCM. So the other number = (8 × 96) ÷ 24 = 768 ÷ 24 = 32.
Shortcut: Other number = HCF × LCM ÷ given number.
The HCF and LCM of two numbers are 12 and 180 respectively. If one of the numbers is 36, what is the other number?
- (A)72
- (B)48
- (C)5
- (D)60
Show answer and explanation
Correct answer: (D) 60
For any two numbers, product of the numbers = HCF × LCM. So the other number = (12 × 180) ÷ 36 = 2160 ÷ 36 = 60.
Shortcut: Other number = HCF × LCM ÷ given number.
Frequently asked questions
How many SSC GD Number System questions can I practise here?
2 questions — 2 moderate. 2 are shown on this page with answers and explanations, and the practice set draws from all of them.
How should I practise Number System for SSC GD?
Read through a few solved questions first to see the method, then take a timed practice set. Afterwards, check which questions you got wrong or spent longest on and redo those before moving on.