Time Left - 10:00 mins

Accelerate JEE 2020: Permutation & Combination Class 6 (26.09.2019)

Attempt now to get your rank among 392 students!

Question 1

A teacher takes 3 children from her class to the zoo at a time as often as she can, but she doesn’t take the same set of three children more than once. She finds out that she goes to the zoo 84 times more than a child goes to the zoo, Total number of students in her class in equal to:

Question 2

A box contains two white balls, three black balls and four red balls. In how many ways can three balls be drawn from the box if at least one black ball is to be included in the draw

Question 3

In the next World cup of cricket there will be 12 teams, divided equally in two groups. Teams of each group will play a match against each other. From each group 3 top teams will qualify for the next round. In this round each team will play against each others once.Each of the four top teams of this round will play a match against the other three. Two top teams of this round will go to the final round, where they will play the best of three matches. The Minimum number of matches in the next World cup will be

Question 4

12 chairs are arranged in a row and are numbered 1 to 12. 4 men have to be seated in these chairs so that the chairs numbered 1 and 8 should be occupied and all four men are not together. Find the number of ways the task can be done.

Question 5

In a hockey championship, there are 153 matches played. Every two team played one match with each other. The number of teams participating in the championship is:

392 attempts
3 upvotes
4 comments

Tags :

Oct 22JEE & BITSAT