Home
Class 12
MATHS
If the best and the worst paper never ap...

If the best and the worst paper never appear together, find in how many ways six examination papers can be arranged.

Text Solution

Verified by Experts

The correct Answer is:
480
If the best and worst papers appear always together, the number of ways is `5!xx2`. Therefore, the required number of ways is as follows.
Total number of ways without any restrictions -Number of ways when best and worst paper are together `=6!-5!xx2=480`.
Promotional Banner

Similar Questions

Explore conceptually related problems

In how many ways can 6 persons stand in a queue?

In how many ways can 6 boys form a ring ?

In how many ways can 6 men be seated at a round table ?

In how many ways three letters a,b,c can be arranged without repetition ?

A boat has a crew of 8 men of which 2 can row only on one side and only on the other. In how, many ways can the crew be arranged equally both sides in the boat ?

At a certain examination there are 6 question papers on six subjects . In order to pass the examination , a candidate has to secure a minimum of marks in each of the 6 papers . In how many different ways may a candidate fail ?

At a certain examination , there are 8 papers . In order to pass the examination a candidate has to secure a minimumof marks in each of the 8 papers . In how many ways can a candidate fail in the examination ?

Show that the letter of the word INSURANCE can be arranged in twicw as many ways as the letters of the word ECONOMICS .

The number of ways in which the letters of the word PESSIMISTIC can be arranged so that no two S's are together, no of two I's are together and letters S and I are never together is

Kavita needs 120 sheets of paper. There are 24 sheets in each bundle, Lets find how many bundles of paper Kavita would buy.