Try this.... Its interesting!!!

5 men a1,a2,a3,a4,a5 are wearing caps of white or black colour without knowing the colour of his own cap.It is known that man wearing a black cap always speaks the truth and the one wearing white always tells lie.If the make following statements:
a1:I see 3 black caps and 1 white
a2:I see 4 white caps
a3:I see 1 black cap and 3 white cap
a4:I see 4 black caps
Conclude the colour of the cap worn by each..

Please try it.......

22 Answers

49
Subhomoy Bakshi ·

yea thinking on this more and more i am convinced that my answer is the correct answer or if there are more than one answer then mine is one of the correct answers

1
Anjalee ·

There is only one answer to this. This question is surely based on assumption but u can easily verify it by the statements provided

1
Anjalee ·

@Tapas: Ur previous answer was correct!!!!

49
Subhomoy Bakshi ·

ohh god i read q wrngly...

29
govind ·

but in the question its given "a black cap always speaks the truth and the one wearing white always tells lie"
Tapas..ur answer seems right...

49
Subhomoy Bakshi ·

yes tapas is correctt.........no doubt

a1 and a5 are white...

49
Subhomoy Bakshi ·

sry nw i feel i am wrng.

49
Subhomoy Bakshi ·

no...a4 also white...[2][2]

49
Subhomoy Bakshi ·

yes tht was mine answer..[1][1]

49
Subhomoy Bakshi ·

no tapas ur has contradictions....i thnk u r wrng....i d k for sure but i think so..

1
Tapas Gandhi ·

if
white caps tell truth

blackies lie...

a1-w
a2-b
a3-b
a4-b
a5-w

1
Avinav Prakash ·

wat if
a1:white
a2:b
a3:w
a4:w

1
Tapas Gandhi ·

i meant mine u agree with mine??

49
Subhomoy Bakshi ·

white caps tell truth

blackies lie...[3][3]

1
Tapas Gandhi ·

a2 sees 4 white caps but since he is wearing a WHITE cap he is lying!!!

49
Subhomoy Bakshi ·

abve soln means???

ur or mine??

49
Subhomoy Bakshi ·

a2???????????? i disagree.........[2][2]

1
Tapas Gandhi ·

is the above the only possible solution? if no, how many solution can be there? plz give reason.

1
Tapas Gandhi ·

a1-w
a2-w
a3-b
a4-w
a5-b

49
Subhomoy Bakshi ·

a1 and a4 are wearing white...

others arte black

idk if the ans is crct coz this soln is based on assumption...[2][2]

1
Anjalee ·

The colour of a5's cap also has to be concluded!!!

29
govind ·

@Avinav..if a2 is wearing black cap then he will speak truth..acc to him.." I see 4 white caps " so that means a5 is wearing a white cap...but a3 is wearing a black one so he will tell lies.."I see 1 black cap and 3 white cap" ..but in ur case he is telling the truth...

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