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 8 refuse to sit in the lower deck, is

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

20 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 distributed is

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