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There are N coins on a table and there are two players A & B. You can take 1 or 2 coins at a time. The person who takes the last coin is the loser. A always starts first.

If N=7
(a) A can always win by taking two coins in his first chance
(b) B can win only if A takes two coins in his first chance.
(c) B can always win by proper play
(d) none of the above

Read Solution (Total 3)

b can always win by proper play..
according to A , B can take 1 or 2 for each time...
13 years agoHelpfull: Yes(5) No(2)

A IS THE ANSWER
11 years agoHelpfull: Yes(1) No(1)
(D)none of these
(A) condition false because if A tooks 2 coin in first chance then B pick 1 coin THEN A pick 1 coin THEN B Pick 1coin then A pick 1 coin so in this condition A lose.
(B)Condition false Because if A takes 1 coin in his first chance then B picks 2 coins then A pick 1 coin THEN B picks 2 coins then A pick 1 coin in last, so in this condition also B wins.

(C) condition false .cause if A start and pick two coins then B picks two coins then A picks two coins and in last B picks one coin so B lose in this condition

Answer will be (D)
6 years agoHelpfull: Yes(0) No(1)

Wipro Other Question

A family X went for a vacation. Unfortunately it rained for 13 days when they were there. But whenever it rained in the mornings, they had clear afternoons and vice versa. In all they enjoyed 11 mornings and 12 afternoons. How many days did they stay there totally? Mr. Mathurs jewels have been stolen from his bank locker. The bank has lockers of 12 people which are arranged in an array of 3 rows and 4 columns like:

1 2 3 4
5 6 7 8
9 10 11 12

The locker belonging to JONES was to the right of BLACK'S locker and directly above MILLAR'S.
BOOTH'S locker was directly above MILLAR'S.
SMITH'S locker was also above GRAY's (though not directly).
GREEN'S locker was directly below SMITH'S.
WILSON'S locker was between that of DAVIS and BOOTH.
MILLAR'S locker was on the bottom row directly to the right of HERD'S.
WHITE'S locker was on the bottom right hand corner in the same column as BOOTH'S.
Which box belonged to Mr. Mathurs?