MBA Exam

3 friends - A, B, C- went to the passport office to submit their forms. If they saw there were exactly 6 queues, numbered 1 through 6 , in how many ways can the three friends join the queues?

1) 256
2) 216
3) 336
4) 729

Read Solution (Total 2)

336 ways

Possible arrangements are
1 1 1 ... 3 in different rows
2 1 ...... 2 in one row
3 .... all 3 in one row
calculating possible arrangements,
total 336 ways
11 years agoHelpfull: Yes(0) No(0)

Three cases:
1. All three stand in same queue: 6*3! = 36
2. Two of them stand in one queue: 6C2*3!*2 = 180
3. All three stand in different queue: 6*5*4 = 120

Total cases: 36+180+120=336
11 years agoHelpfull: Yes(0) No(0)

MBA Other Question

In (1) (2 3) (4 5 6) (7 8 9 10). Find out the sum of terms in 50th bracket.can any one explian it

1) 62525
2) 37525
3) 7875
4) none of the above
each side of a given polygon is parallel to either the x-axis or the y-axis. A corner of such a polygon is said to be convex if the internal angle is 90 or concave if the the internal angle is 270. If the number of convex corners in such a polygon is 25, the number of concave corners must be..CAT 2003(LEAKED)Explanation needed..

1) 20
2) 0
3) 21
4) 22