Time Left - 10:00 mins

Probability & Caselet DI II Quantitative Aptitude II MH-CET 2021 II 20 August

Attempt now to get your rank among 287 students!

Question 1

The probability of Namita and Shilpa winning a beauty contest is  and  respectively. Find the probability that at least one of them wins the contest.

Question 2

A committee of six persons is to be chosen from a group of 8 men and 5 women. The probability that at most three of them are men is:

Question 3

The ratio of girls and boys in the class is 3 : 2. Total number of boys in the class is 16. Total number of girls who have failed in the class test is 20. If A girl is selected at random from the class, what is the probability that the selected girl has passed the test?

Question 4

A container has 3 white and 4 black balls. Another container has 2 white and 3 black balls. If one ball is drawn from each container, find the probability that both are white.

Question 5

In test 1 the probability of passing the test by Aman is . In another test 2 the probability of passing the test by Aman is . Find the probability that Aman will fail in test 1 and pass in test 2.

Question 6

Direction: Study the following information carefully and answer the questions given below:
The given information briefs about the percentage of work done by five sanitation workers in Municipal Corporation of Delhi and also the number of hours taken by sanitation workers to complete the respective percentage of same work.
Five workers Mahendra, Rampal, Vijay, Ramesh and Suresh do the sanitation work together. Mahendra did 37.5% of the work in 9 hours while Rampal does 20% of the work in 3.2 hours. Vijay took 35 hours to finish 125% of the work while Ramesh took 9 hours to complete 25% of the work. Suresh takes 27 hours to finish 150% of the work.
Out of the given five sanitation workers, who has the highest efficiency?

Question 7

Direction: Study the following information carefully and answer the questions given below:
The given information briefs about the percentage of work done by five sanitation workers in Municipal Corporation of Delhi and also the number of hours taken by sanitation workers to complete the respective percentage of same work.
Five workers Mahendra, Rampal, Vijay, Ramesh and Suresh do the sanitation work together. Mahendra did 37.5% of the work in 9 hours while Rampal does 20% of the work in 3.2 hours. Vijay took 35 hours to finish 125% of the work while Ramesh took 9 hours to complete 25% of the work. Suresh takes 27 hours to finish 150% of the work.
Out of the given pairs, who will complete the work in the minimum time if they are working together?

Question 8

Direction: Study the following information carefully and answer the questions given below:
The given information briefs about the percentage of work done by five sanitation workers in Municipal Corporation of Delhi and also the number of hours taken by sanitation workers to complete the respective percentage of same work.
Five workers Mahendra, Rampal, Vijay, Ramesh and Suresh do the sanitation work together. Mahendra did 37.5% of the work in 9 hours while Rampal does 20% of the work in 3.2 hours. Vijay took 35 hours to finish 125% of the work while Ramesh took 9 hours to complete 25% of the work. Suresh takes 27 hours to finish 150% of the work.
Find the number of hours taken by Mahendra, Ramesh and Suresh fo the completion of work if they work together.

Question 9

Direction: Study the following information carefully and answer the questions given below:
The given information briefs about the percentage of work done by five sanitation workers in Municipal Corporation of Delhi and also the number of hours taken by sanitation workers to complete the respective percentage of same work.
Five workers Mahendra, Rampal, Vijay, Ramesh and Suresh do the sanitation work together. Mahendra did 37.5% of the work in 9 hours while Rampal does 20% of the work in 3.2 hours. Vijay took 35 hours to finish 125% of the work while Ramesh took 9 hours to complete 25% of the work. Suresh takes 27 hours to finish 150% of the work.
Mahendra, Rampal and some other sanitation worker named Ajay can complete the work in 8 hours. They are paid 12000 and the amount is divided between them on the basis of their work done. What is the share of Ajay?

Question 10

Direction: Study the following information carefully and answer the questions given below:
The given information briefs about the percentage of work done by five sanitation workers in Municipal Corporation of Delhi and also the number of hours taken by sanitation workers to complete the respective percentage of same work.
Five workers Mahendra, Rampal, Vijay, Ramesh and Suresh do the sanitation work together. Mahendra did 37.5% of the work in 9 hours while Rampal does 20% of the work in 3.2 hours. Vijay took 35 hours to finish 125% of the work while Ramesh took 9 hours to complete 25% of the work. Suresh takes 27 hours to finish 150% of the work.
If Rampal is x% more efficient than Vijay, then find the value of x.
  • 287 attempts
  • 0 upvotes
  • 0 comments
Jan 13CAT & MBA