Let us denote E = easy questions, M = multiple choice question, D = difficult questions and T = true/false questions. Total number of questions = 1400 Total number of multiple-choice questions = 900 Probability of selecting easy multiple-choice question is P ( E ∩ M) = 400/1400 = 2/7 Probability of selecting multiple is P ( M) = 900/1400 = 9/14 P(E|M) represents the probability that a randomly selected question will be an easy question, given that is a multiple-choice question. Therefore, P(E|M) = P( E ∩ M)/P(M) = (2/7)/(9/14) = 4/9 Therefore, required probability = 4/9
To walk the tightrope
A formal expression of disapproval
Fill in the blank given below using the correct idiom.
The team worked tirelessly to meet the deadline, but the unexpected technical issues ...
Fill in the blank given below using the correct idiom.
John thought his missing keys were stolen by his roommate, but he was ______________...
Jump on the bandwagon
It is the result of feeling blue for so long that has now started affecting his physical health also.
"All politicians blame each other and tell themselves good; it's like pot calling the kettle black ."
His determination to spice up his story makes it sometimes read like a dime novel about a drink-crazed mafia don.
Select the most appropriate meaning of the following idiom.
To be all at sea
In each question below, a sentence is given with an idiom/phrase printed in bold type. That part may contain a grammatical error. Each sentence is follo...
