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10 suspects are rounded by the police and questioned about a bank robbery. Only one of them is guilty. The suspects are made to stand in a line and each person declares that the person next to him on his right is guilty. The rightmost person is not questioned. Which of the following possibilities are true?
A. All suspects are lying.
B. leftmost suspect is innocent.
C. leftmost suspect is guilty
a) A only b) A or C c) A or B d) B only
Read Solution (Total 1)
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- If left most person is innocent any one of them in the right side of him will be guilty. So the person before guilty said true. Hence if left is innocent, all are lying will not come.
If left is guilty every person including him who were inquired lying.
So, Ans ;
and condition given means A and C
or condition given means A or C - 7 years agoHelpfull: Yes(0) No(1)
TCS Other Question
21 people meet and shake hands. The maximum number of handshakes possible if there is no cycle of handshakes is
(A cycle of handshakes is a sequence of people a1, a2,....., ak such that the pairs (a1, a2), (a2, a3),.....(a(k-1), ak), (ak, a1) shake hands.
a) 17 b) 18 c) 19 d) 20
The pace length P is the distance between the rear of two consecutive footprints. For men, the formula, n/P = 144 gives an approximate relationship between n and P where, n = number of steps per minute and P = pace length in meters. Bernard knows his pace length is 164cm. The formula applies to Bernard's walking. Calculate Bernard's walking speed in kmph.
a) 23.22 b) 8.78 c) 11.39 d) 236.16