Robert Bosch Probability Quiz 1

Mangal Pandey brought a bag of balls for an activity. A bag contains 6 red, 2 blue and 4 green balls. 3 balls are chosen at random. What is the probability that at least 2 balls chosen will be red?

 

Robert Downey has brought a bag of tickets. Tickets numbered 1 to 250 are in a bag. What is the probability that the ticket drawn has a number which is a multiple of 4 or 7?

 

 

Satya Nadela was playing a word game in which one 5 letter word is to be formed taking all letters – S, A, P, T and E. What is the probability that this the word formed will contain all vowels together?

 

Karan grover was playing a number game where one 5-digit number is to be formed from numbers – 0, 1, 3, 5, and 6 (repetition not allowed). What is the probability that number formed will be even?

 

Steve coogan has transferred some green balls from bag 1 to bag 3. Now probability of choosing a blue ball from bag 3 becomes 3/16. Find the number of remaining balls in bag 1.

 

 

Now Green balls in ratio 4 : 1 from bags 1 and 3 respectively are transferred to bag 4 by steve coogan. Also 4 and 8 red balls from bags 1 and 3 respectively . Now probability of choosing green ball from bag 4 is 5/11. Find the number of green balls in bag 4?

 

There are 3 people – Akbar, Birbal and Chandni. Probability that Akbar speaks truth is 3/10, probability that Birbal speaks truth is 3/7 and probability that Chandni speaks truth is 5/6. For a particular question asked, at most 2 people speak truth. All people answer to a particular question asked.

What is the probability that Birbal will speak truth for a particular question asked?

 

Akbar speaks truth only when Birbal does not speak truth, then what is the probability that Chandni does not speak truth on a question?

 

 

Avinash kapoor brought a box of tickets.There are 100 tickets in a box numbered 1 to 100. 3 tickets are drawn at one by one. Find the probability that the sum of number on the tickets is odd.

 

Sakshi jindal brought two bags containing balls. There are 4 green and 5 red balls in first bag. And 3 green and 5 red balls in second bag. One ball is drawn from each bag. What is the probability that one ball will be green and other red?