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Ethiopia-Tigray Crisis: International Relations This Week

International relations is a very important segment of the UPSC syllabus. In this series, we present an analysis of the... View Article

UPSC Current Affairs Preparation: The Hindu Analysis Watch expert analysis of ‘The Hindu’ dated 20 Dec 2021. Important news and... View Article

Economy is an important part of the UPSC prelims and mains exams; this series titled ‘Economy This Week’ has been initiated to... View Article

TABLE OF CONTENTS 1. Digital literacy and financial literacy also as important as basic literacy – Vice President 2. PM... View Article

CNA 20 Dec 2021:- Download PDF Here TABLE OF CONTENTS A. GS 1 Related B. GS 2 Related POLITY 1.... View Article

(a) |A|n-1A (b) |A|nA (c) |A|n-2A (d) none of these Solution: For any square matrix A, we know A-1 =... View Article

Solution: Let y = |x| The modulus function |x| = x, when x ≥ 0 |x| = -x, when x<0... View Article

A 2×3 matrix is a matrix having 2 rows and 3 columns. We often say a two by 3 matrix... View Article

A 10 digit number has 10 digits and the first digit should not be zero. The first digit should be... View Article

(a) 1/3 (b) 3 (c) 5 (d) None of these Solution: Given 10x = 30 Divide both sides of the... View Article

(a) 325 (b) 300 (c) 505 (d) None of these Solution: Sum of n natural numbers = n(n+1)/2 = 25×26/2... View Article

(a) 1111 (b) 10111 (c) 11011 (d) 11111 Solution: In the binary system, we use 1 and 0 to represent... View Article

(a) 228/91 (b) 1/91 (c) 200/91 (d) 198/91 Solution: Let x be the required number. 27/13 – x = -3/7... View Article

Solution: Given series 98, 72, 14, __ Here the next number is obtained by multiplying 2 digits of the first... View Article

Solution: 1 hour = 60 minutes Let x percentage of 60 minutes = 30 minutes => (x/100)60 = 30 =>... View Article

Solution: (4/5) ÷ (7/15) × (8/9) = (4/5) × (15/7) × (8/9) (multiply by reciprocal) = 4×15×8/5×7×9 = 32/21

Solution: Number of elements = 11. We have to find the number of ways of choosing 4 elements of the... View Article

Solution: Given number is (3 × 12 × 101) + 4 We have to check whether it is prime or... View Article

Solution: Let x be the cost of a chair and y be the cost of a table. 3x + 2y... View Article

(a) An/the (b) The/no article (c) The/the (d) no article/the Solution: ‘The’ is used as a definite article for a... View Article