Tuesday, April 20, 2010

घन से बने 125 छोटे घन... (Cut the cube into 125 smaller cubes...)

विशेष नोट : अगर आप जवाब ढूंढ लेते हैं तो ठीक, वरना कमेंट लिख दीजिएगा, मैं जवाब आपको मेल के जरिये भेज दूंगा...

मैंने काले रंग की किसी सामग्री से एक ठोस घन (जिसकी लम्बाई, चौड़ाई और ऊंचाई बराबर हो) बनाया, और उसकी सभी बाहरी दीवारों पर सफेद रंग कर दिया...

अब, अगर मैं इस घन से बिल्कुल एक जैसे आकार के 125 छोटे घन तैयार करूं, तो कितने छोटे घन ऐसे होंगे, जिनकी कम से कम दो दीवारों पर सफेद रंग होगा...?

Now, the same riddle in English...

Special Note: If you succeed in solving this one, well and good; but in case, you don't, just leave a comment, and I will mail the answer to you...
I made a solid cube with black material, and painted its exterior with white colour...

Now, if I cut this cube into 125 smaller cubes of exactly the same size, how many of the smaller cubes will have at least two of their sides painted white...?

14 comments:

  1. This comment has been removed by a blog administrator.

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  2. प्रणाम अन्तर भाई, जवाब बिल्कुल सही है... बधाई...

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  4. Akki, jawaab dene ke liye jo hisaab tumne failaaya tha, woh bilkul sahi tha, lekin total likhne mein gadbad kar gaye ho, bhai... Vaise badhaai, kyonki main is jawaab ko hisaab se dekhkar sahi maan raha hoon...

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  7. Anand babu, jawaab bilkul sahi hai aapka... Badhaai... :-)

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  9. तुम्हारा जवाब सही है, अनमोल... बधाई... :-)

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  10. Replies
    1. Jawaab sahi nahin hai, Zainul... Ek baar phir koshish karo... :-)

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    1. Priya, tumhaara jawaab bilkul sahi hai... Badhaai... :-)

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