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Six books - B...

Question

Six books – B1, B2, B3, B4, B5 and B6 – are kept in a stack – not necessarily in the same order. B2 is not at the top. B4 is immediately above B6 and B3 is immediately above B5. B1 is below B5, and B4 is above B5. Which book is at the top?

छः पुतक - B1, B2, B3, B4, B5 और B6 एक क्रमबद्ध ढेर में लगी हैं - अनिवार्य नहीं है कि दिये गये क्रम में हों। B2 सबसे ऊपर नहीं है। B4, B6 के ठीक ऊपर है और B3, B5 के ठीक ऊपर है। B1, B5 के नीचे है और B4, B5 के ऊपर है। कौन-सी पुस्तक सबसे ऊपर है?

A

B3

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B

B4

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C

B6

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D

B1

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Solution

The correct option is B B4
The possible arrangements of books are shown below.

Hence, B4 is at the top

पुस्तकों की संभावित व्यवस्स्था को नीचे दर्शाया गया है:
अत: B4 शीर्ष पर है।

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