Quote:
Originally Posted by mathbuoy  I am not sure whether this is a math problem. <may be is probability>
5 person A, B, C, D, and E each bought a lottery ticket. Only one of them strikes the lottery.
A said: C strikes the lottery
B said: A strikes the lottery
C said: A is lying
D said: I did not strike the lottery
E said: B strikes the lottery
Only one of them tells the truth. Who strikes the lottery? |
This is a logic problem,need to find contradiction,then find only one answer.
easy way is
U can see (A,C), ( B,D,E ) is contradiction for conditions(Only one of them strikes the lottery.Only one of them tells the truth)
so D strikes the lottery,C is telling the truth.