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How Do You Determine Which Oxidizing Agent Is Stronger

The higher the electronegativity the greater the pull an oxidizing agent has for electrons. The higher the pull for electrons the stronger the... View Article

How Do You Evaluate 6c4

This can be evaluated by knowing the basic equation nCr = n!/(n−r)! xr! 6C4 = 6!/(6−4)! x4! =6 x 5 x 4 x 3 x 2 x 12 x 1 x 4 x 3 x 2 x... View Article

15 Dec 2020: PIB Summary & Analysis

December 15th, 2020, PIB:- Download PDF Here TABLE OF CONTENTS 1. Quality Council of India (QCI) 2. Department of Posts 3. Swarnim Vijay Varsh... View Article

16 Dec 2020: UPSC Exam Comprehensive News Analysis

16 Dec 2020 CNA:- Download PDF Here TABLE OF CONTENTS A. GS 1 Related B. GS 2 Related INTERNATIONAL RELATIONS 1. U.S. imposes CAATSA sanctions on... View Article

India And Sri Lanka Play One Day International Series Until One Team Wins 4 Matches

1) 35 2) 70 3) 40 4) None of these Answer: (2) 70 Solution: Total number of ways one team can win the series = 4C4 + 4C3 + 5C3 + 6C3 =... View Article

In An Examination The Maximum Marks For Each Of Three Papers Are 50 Each

1) 110556 2) 110500 3) 110356 4) None of these Answer: (4) None of these Solution: Total marks = 50 + 50 + 50 +100 = 250 60% of 250 = 150... View Article

The Number Of Positive Integers With The Property That They Can Be Expressed

1) 10 2) 100 3) 40 4) ∞ Answer: (4) ∞ Solution: Suppose n is the positive integer with the property that it can be expressed as the sum of... View Article

The Number Of Positive Integers Satisfying The Inequality N1cn2 N1cn1 100 Is

1) 5 2) 8 3) 9 4) None of these Answer: (3) 9... View Article

The Total Number Of Ways In Which A Begger Can Be Given At Least One Rupee

1) 54 2) 50 3) 52 4) None of these Answer: (1) 54 Solution: Number of ways of getting at least one rupee coin, random number of 50-paise... View Article

The Number Of Even Proper Divisors Of 1008 Is

1) 23 2) 21 3) 20 4) none of these Answer: (1) 23 Solution: Prime factorisation of 1008 = 24 x 32 x 7 = 2(24 x 32 x 7) Even number of... View Article

The Number Of Odd Proper Divisors Of 3p 6m 21n Is Equal To

1) (p + 1) (m + 1) (n + 1) – 2 2) (p + m + n + 1) (n + 1) – 1 3) (p + 1) (m + 1) (n + 1) – 1 4) None of these Answer: (2) (p + m + n + 1) (n... View Article

The Number Of Proper Divisors Of 2p 6q 15r Is Equal To

1) (p + q + 1) (q + r + 1) (r + 1) 2) (p + q + 1) (q + r + 1) (r + 1) – 2 3) (p + q) (q + r) r – 2 4) None of these Answer: (2) (p + q + 1)... View Article

In A Room There Are 12 Bulbs Of The Same Wattage Each Having A Separate Switch

1) 122 – 1 2) 212 3) 212 – 1 4) None of these Answer: (3) 212 - 1 Solution: Number of ways to light the room = 12C1+12C2+12C3+....+12C12... View Article

The Total Number Of 5digit Numbers Of Different Digits In Which The Digit In The Middle

1) 32 (5!) 2) 35 (3!) 3) 32 (3!) 4) None of these Answer: (4) None of these Solution: If we include 0 in the middle of the 5-digit number,... View Article

The Number Of Distinct Rational Numbers X Such That 0 X 1 And Xpq

1) 14 2) 15 3) 12 4) 11 Answer: (4) 11 Solution: Total number of digits = 6 Each rational number need two digits out of these 6 digits.... View Article

The Number Of Ways In Which A Mixed Double Game Can Be Arranged From Amongst 5

1) 56 2) 60 3) 96 4) None of these Answer: (2) 60 Solution: 2 men can be selected from 5 men in 5C2 ways 2 women can be selected from... View Article

The Tens Digit Of 1 2 3 49 Is Equal To

1) 1 2) 2 3) 3 4) 4 Answer: (1) 1 Solution: 1! =1, 2! = 2, 3! = 6, 4! = 24, 5! = 120, 6! = 720, 7! = 5040, 8! = 40320, 9! = 362880 If we... View Article

Let P Be A Prime Number Such That P 3 Let X P 1 The Number Of Primes In The List

1) p – 1 2) 2 3) 1 4) 0 Answer: (4) 0 Solution: If P=3,x=3!+1 = 7 So, (n+P-1)=(7+3-1)=9 If P=4,x=4!+1 = 25 So, (n+P-1)=(25+9-1)=28 If... View Article

A Letter Lock Consists Of Three Rings Marked With 15 Different Letters If N Denotes

1) N is product of three distinct prime numbers. 2) N is product of 4 distinct prime numbers. 3) N is product of 2 distinct prime numbers. 4)... View Article

The Number Of Rectangles That You Can Find On A Chessboard Is Equal To

1) 144 2) 1296 3) 256 4) none of these Answer: (2) 1296 Solution: In a chessboard, we have 9 vertical lines and 9 horizontal lines.... View Article