A double-decker bus carry `(u+l)` passengers, `u` in the upper deck and `l` in the lower deck. Find the number of ways in which the `u+l` passengers can be distributed in the two decks, if `r(lt=l)` particular passengers refuse to go in the upper deck and `s(lt=u)` refuse to sit in the lower deck.

Passengers are to travel by a double decker bus which can accomodate in upper deck and in lower deck.The number of ways that the passengers are distributed is

Passengers are to travel by a double decked bus which can accommodate 13 in the upper deck and 7 in the lower deck.Find the number of ways that they can be distributed if 5 refuse to sit in the upper deck and 8refuse to sit in the lower deck.

Passengers are to travel by a double decked bus which can accommodate 13 in the upper deck and 7 in the lower deck.The number of ways that they can be divided if 5 refuse to sit in the upper deck and 8refuse to sit in the lower deck,is

A double -decker bus has 5 empty seats in the upper deck and 5 empty seats in the lower deck. 10 people board the bus of which 2 are old people and 3 are children. The children refuse to take seats lower deck while old people insist to stay lower deck. How many different sitting arrangements of the people are possible ?

Why are passengers travelling in a double decker bus allowed to stand in a lower deck, but not in the upper deck?

There are 10 seats in a double decker bus,6 in the lower deck and 4 on the upper deck.Ten passengers board the bus,of them 3refuse to go to the upper deck and 2 insist on going up. The number of ways in which the passengers can be accommodated is (Assume all seats to be duly numbered)

Number of ways in which the letters of the word ‘B U L B U L’ can be arranged in a line in any order is also equal to the:

With teams divided to get back the infinity stones, Captain America and Tony are going after the Tesseract containing the space stone. They have realized that the tesseract is secured in a two-level cage, each level containing 9 sections. The tesseract is somewhere in the two central sections, which is surrounded by security guards in the surrounding 16 sections, 8 on the upper level and 8 on the lower level. While the guards start marching towards the cage, Cap and Tony get hold of three of the guards outside and obtain the following information about the arrangement of the security in the cages : 1. All 16 sections must be occupied. 2. No section can hold more than 3 guards. 3. Each of the four outer sides (total of both levels) must hold 11 guards. 4. The whole upper leve-l must hold twice as many guards as the whole lower level. Although 3 fewer guards than expected have reached the cage, all the guards were able to house in the cage in conformity with the four conditions. Help Cap and Tony to find out how many total guards were marching for the security (including the 3 they captured in the beginning).

With teams divided to get back the infinity stones, Captain America and Tony are going after the Tesseract containing the space stone. They have realized that the tesseract is secured in a two-level cage, each level containing 9 sections. The tesseract is somewhere in the two central sections, which is surrounded by security guards in the surrounding 16 sections, 8 on the upper level and 8 on the lower level. While the guards start marching towards the cage, Cap and Tony get hold of three of the guards outside and obtain the following information about the arrangement of the security in the cages : 1. All 16 sections must be occupied. 2. No section can hold more than 3 guards. 3. Each of the four outer sides (total of both levels) must hold 11 guards. 4. The whole upper leve-l must hold twice as many guards as the whole lower level. Although 3 fewer guards than expected have reached the cage, all the guards were able to house in the cage in conformity with the four conditions. If the sum of the guards in the 8 corner cells for the present arrangement is N and that of the original arrangement if the 3 guards were also present is M, what is M + N?