Latest TCS Aptitude Question SOLUTION: A boy has Rs 2 in total. If he wins, he gains 1 Rupee and if he loses, he has to loose 1 Rupee. The boy may lose only 5 times in the game and if he earns 5 Rs, he has to quit the g

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(#M40038091) TCS Category question Keep an EYE

A boy has Rs 2 in total. If he wins, he gains 1 Rupee and if he loses, he has to loose 1 Rupee. The boy may lose only 5 times in the game and if he earns 5 Rs, he has to quit the game. Find the number of ways of the possibilities

Asked In TCS shikha singh (9 years ago)

Unsolved Read Solution (4)

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Pramod  (9 years ago)

boy may have rs.5 in following ways-
2+3(W)= only one way.
2+(-5L)+8(W);=13!/5!*8!
2+(-4L)+7(w);=11!/4!*7!
2+(-3L)+6(w)= 9!/3!*6!
2+(-2L)+5(w)=7!/2!*5!
2+(-1L)+4(w)=5!/4!
because maximum 5 loss is allowed.
thus total ways of having( rs.5)=1+ 13!/5!*8!+11!/4!*7!+9!/3!*6!+7!/2!*5!+5!/4!
=1728; ans.

Is this solution Helpfull? Yes (19) | No (3)  

pooja chavan  (9 years ago)

he has played 15 games...
in dat he won 10 times so he got Rs.10/-
and 5 time he lost the game so he lost Rs.5/-
total he earns Rs.5/-.

Is this solution Helpfull? Yes (2) | No (12)  

Arpan Bhattacharyya  (9 years ago)

2^3=8 no of possibilities

Is this solution Helpfull? Yes (2) | No (3)  

sonali sahoo  (9 years ago)

16 is the correct answer

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