There Are Two Children In A Family The Probability That Both Of Them Are Boys Is
1) 1/2 2) 1/3 3) 1/4 4) None of these Solution: Option (3) ¼ Let “B” represent the boy and... View Article
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The Probability That A Number Selected At Random From The Numbers 1 2 3 To 99 100 Is A Prime Is
1) 0.4 2) 0.25 3) 0.45 4) 0.43 Solution: Option (2) 0.25 Total cases, n(S) = 100 Let A be... View Article
A Book Contains 1000 Pages Numbered Consecutively The Probability That The Sum Of The Digits Of The Marked Number Of A Page Is 9 Is
1) 55/1000 2) 0 3) 33/1000 4) 44/1000 Solution: Option (1) 55/1000 Total number of pages in a book =... View Article
A Single Letter Is Selected At Random From The Word Probability The Probability That The Selected Letter Is A Vowel Is
1) 2/11 2) 3/11 3) 4/11 4) 0 Solution: Option (3) 4/11 In the word “probability”, the total number of... View Article
From A Wellshuffled Pack Of Cards One Card Is Drawn At Random The Probability That The Card Is Drawn Is An Ace Is
1) 1/13 2) 4/13 3) 3/52 4) None of these Solution: Option (1) 1/13 Total number of cards in a... View Article
If Two Balanced Dice Are Tossed Once The Probability Of The Event That The Sum Of The Integers Coming On The Upper Sides Of The Two Dice Is 9 Is
1) 7/18 2) 5/36 3) 1/9 4) ⅙ Solution: Option (3) 1/9 If two dice are tossed, the total number... View Article
A And B Toss A Coin Alternatively The First To Show A Head Being The Winner If A Starts Game The Chance Of His Winning Is
1) 5/8 2) 1/2 3) 1/3 4) ⅔ Solution: Option (4) ⅔ To win A, the outcomes of A should... View Article
The Probability Of Drawing A White Ball From A Bag Containing 3 Black Balls And 4 White Balls Is
1) 4/7 2) 3/7 3) 1/7 4) None of these Solution: Option (1) 4/7 Total number of balls in a... View Article
In A Single Throw Of Two Dice The Probability Of Getting More Than 7 Is
1) 7/36 2) 7/12 3) 5/12 4) 5/36 Solution: Option (3) 5/12 The total number of ways that a die... View Article
Two Cards Are Drawn Successively With Replacement From A Pack Of 52 Cards The Probability Of Drawing Two Aces Is
1) 1/169 2) 1/221 3) 1/2652 4) 4/663 Solution: Option (1) 1/169 Total number of cards = 52 The probability... View Article
If Pa 23 Pb 12 And Pa Union B 56 Then Events A And B Are
1) Mutually exclusive 2) Independent as well as mutually exhaustive 3) Independent 4) Dependent only on A Solution: Option (3)... View Article
Let A B C Be Three Mutually Independent Events Consider Two Statements S1 And S2 Then
1) Both S1 and S2 are true 2) Only S1 is true 3) Only S2 is true 4) Neither S1... View Article
Two Fair Dice Are Tossed Let A Be The Event That The First Die Shows An Even Number And B Be The Event That The Second Die Shows An Odd
1) Mutually exclusive 2) Independent and mutually exclusive 3) Dependent 4) None of the above Solution: Option (4) None of... View Article
A Sum Of Money Is Rounded Off To The Nearest Rupee The Probability That The Roundoff Error Is At Least Ten Paise Is
1) 79/100 2) 80/100 3) 81/100 4) None of these Solution: Option (3) 81/100 Here, the sample space = -0.50,... View Article
Is Kf A Weak Acid
Yes, Potassium fluoride (KF) is a weak acid. Visit BYJU’S – The Learning App to know more about the solubility... View Article
Is Kbr A Strong Acid
Potassium bromide (KBr) a neutral solution. Visit BYJU’S – The Learning App to know more about the properties of solutions... View Article
Is Hbr Stronger Than H2e
Yes, hydrogen bromide (HBr) is stronger than hydrogen selenide (H2Se). Visit BYJU’S – The Learning App to know more about... View Article
Is Honey Alkaline Or Acidic
Honey is acidic by nature since its pH level ranges from 3.4 to 6.1. Visit BYJU’S – The Learning App... View Article
Which Method Is Suitable To Remove Hardness Of Water At Home
At home, we can use methods like boiling to remove the hardness of water. It is a temporary method. Visit... View Article
Why Cant Magnetic Field Lines Cross
Magnetic field lines are continuous in nature which start from the north pole and end at the south pole. They... View Article
