Q3 please solve it ??!!!??
Dear Student,
For (i). In this case, The total no. of possible cases from A to B is 12 and from B to A, we will take the same one. Hence, from B to A is 1. Total Case 12 X 1=12. So, there are 12 ways of making round trips.
And For (ii).
In this case, the number of ways to go from A to B = 12.
and the number of ways to go from B to A = 12-1=11.
Hence, the required number of ways =(12×11)=132.
Regards
For (i). In this case, The total no. of possible cases from A to B is 12 and from B to A, we will take the same one. Hence, from B to A is 1. Total Case 12 X 1=12. So, there are 12 ways of making round trips.
And For (ii).
In this case, the number of ways to go from A to B = 12.
and the number of ways to go from B to A = 12-1=11.
Hence, the required number of ways =(12×11)=132.
Regards