Subject
Bank Exam
Topic
IFIC Bank Ltd. - Management Trainee Officer - 2017
There are deers and peacocks in a zoo. The total number of their heads is 80 and the total number of their legs is 200. How many peacocks are there ?
There are deers and peacocks in a zoo. The total number of their heads is 80 and the total number of their legs is 200. How many peacocks are there ?
ক)
20খ)
30গ)
50ঘ)
60Explanation
Solution: প্রশ্নে বলা হচ্ছে যে, একটি চিড়িয়াখানায় কিছু হরিণ এবং ময়ূর রয়েছে । প্রাণিগুলোর মোট মাথার সংখ্যা 80 এবং পায়ের সংখ্যা 200 হলে ঐ চিড়িয়াখানায় মোট কতগুলো ময়ূর রয়েছে ? শর্তমতে কতগুলি Peacocks (ময়ূর) আছে ? দেয়া আছে, total head সংখ্যা 80 এবং মোট Leg সংখ্যা 200 । ধরা যাক, x সংখ্যক Peacocks আছে । তাহলে এদের Leg সংখ্যা 2x সংখ্যক । Deer (হরিণ)- এর Leg সংখ্যা (200 - 2x) আবার হরিণ-এর সংখ্যা হবে (80 - x) প্রশ্নমতে, (80 - x) 4 = 200 - 2x => 320 - 4x = 200 - 2x x = 60Related questions
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