Latest TCS Aptitude Question SOLUTION: How many ways can Jason sit with his five friends in a row of six seats with an aisle on either side of the row, if Jason insists on sitting one of the aisles? a) 120 b) 240 c) 360

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How many ways can Jason sit with his five friends in a row of six seats with an aisle on either side of the row, if Jason insists on sitting one of the aisles?
a) 120
b) 240
c) 360
d) 540

Asked In TCS sathyapriya (12 years ago)

Unsolved Read Solution (4)

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sathyapriya  (12 years ago)

ans is 240 : Because Jason must sit on either aisle, there are two places he can sit. And for each of those two seats, there are five friends left for five seats, making 5! ways to arrange them. So the answer is 2 * 5!, which is 240.

Is this solution Helpfull? Yes (50) | No (1)  

rahul bhatiwal  (12 years ago)

the ans should be 36o becoz first we consider that jason sit on left most side then aisle sit wth him so remaining 5 person can sit in 5! ways.
similely if jason sit sit on right most side so one case of 5! IS MORE.
no if jason sit on secon position then aisle can sit right or left to him..so remaing is 4!..there are 5 case of this so that 24*5.
so total ans is 360.

Is this solution Helpfull? Yes (1) | No (31)  

yamuna  (12 years ago)

2*5c4*4!=240

Is this solution Helpfull? Yes (1) | No   

raushan kumar  (12 years ago)

words strat with AD= 4!=24
so the next word will be the 25th and that will start with AE
so the 25th word in dictionary order will be AEDKNR

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