Subject
Bank Exam
Topic
United Commercial Bank Ltd. - Probationary Officer - 2016
A basket contains four balls of four different colors- white, red, black and green, which will be distributed among for persons- Rajib, Litu, Simu and Rida. Rida must not be given the black one. Rajib must be given the white one. Litu must be given either the red one or the black one. Simu must not be given either the black one or the green one. If the above conditions are fulfilled, which of the following must be true ?
A basket contains four balls of four different colors- white, red, black and green, which will be distributed among for persons- Rajib, Litu, Simu and Rida. Rida must not be given the black one. Rajib must be given the white one. Litu must be given either the red one or the black one. Simu must not be given either the black one or the green one. If the above conditions are fulfilled, which of the following must be true ?
ক)
Simu will be given the red oneখ)
Litu will be given the black oneগ)
Ridu will be given the green oneঘ)
All of theseExplanation
Solution: প্রশ্নে বলা হয়েছে, একটি ঝুড়িতে চারটি বল আছে; বলগুলো White, red, black এবং Green এই ভিন্ন চার রঙ্গয়ের । এই বলগুলোকে Rajib, Litu, Simu এবং Rida এই চারজনের মধ্যে প্রশ্নে প্রদত্ত শর্তানুসারে ভাগ করে দিলে অপশনের কোনটি অবশ্যই সত্য হবে ? প্রশ্নের শর্তগুলোকে প্রথমে নিচের মতো করে সাজাইঃ Rajib অবশ্যই White বল পাবে, অর্থাৎ Rajib -> White. বাকি থাকলো Red, Black এবং Green. আর Simu যেহেতু Black বা Green বল এর কোনটাই পাবে না, তাই Simu পাবে Red বল । এখন বাকি থাকলো Black এবং Green. আর Statement অনুযায়ী Rida পাবে Green. বাকি থাকল Black বল, যা অবশ্যই Litu পাবে । সুতরাং দেখা যাচ্ছে যে উত্তর অপশনের সবগুলোই সত্য ।Related questions
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