1
UPSC Civil Service Prelims Paper II 2021 (CSAT)
MCQ (Single Correct Answer)
+2.5
-0.83
The difference between a 2-digit number and the number obtained by interchanging the positions of the digits is 54.
Consider the following statements:
1. The sum of the two digits of the number can be determined only if the product of the two digits is known.
2. The difference between the two digits of the number can be determined.
Which of the above statements is/are correct?
2
UPSC Civil Service Prelims Paper II 2021 (CSAT)
MCQ (Single Correct Answer)
+2.5
-0.83
When a certain number is multiplied by 7, the product entirely comprises ones only (1111....). What is the smallest such number?
Questions Asked from Number System (Marks 2.5)
Number in Brackets after Paper Indicates No. of Questions
UPSC Civil Service Subjects
History of India
Science and Technology
Ecology and Environment
Indian Polity and Governance
Evolution of the Constitution Salient Features of Indian Constitution Union and Its Territory Fundamental Rights Directive Principles of State Policy (DPSP) Fundamental Duties System of Governance Union Executive Union Legislature State Legislature and Executive Local Government Union Territories and Special Areas The Judiciary Constitutional and Non-Constitutional Bodies
Economy
Current Affairs
Comprehension
Basic Numeracy
Logical Reasoning and General Mental Ability
Data Interpretation and Sufficiency