Subject
Bank Exam
Topic
Trust Bank Ltd. - Management Trainee Officer - 2016
Madhuri has cats, fish, and frogs for pets. The number of frog she has 1 more than the number of cats and the number of fish is 3 times the number of frogs. Of the following. which could be the total number of these pets ?
Madhuri has cats, fish, and frogs for pets. The number of frog she has 1 more than the number of cats and the number of fish is 3 times the number of frogs. Of the following. which could be the total number of these pets ?
ক)
15খ)
16গ)
17ঘ)
18ঙ)
19Explanation
Solution: বলা হচ্ছে যে, Maduri'র Cat, fish এবং Frog রয়েছে । তার যতগুলো Cat রয়েছে, Frog এর সংখ্যা তার চেয়ে 1টি বেশী এবং যতগুলো Frog এর সংখ্যা তার 3 গুণ রয়েছে Fish. এখন প্রশ্ন হলো, নিচের অপশনগুলোর মধ্যে Madhuri'র পোষা প্রাণীর সংখ্যা কয়টি হতে পারে ? ধরি, Cat রয়েছে = x টি Frog রয়েছে = (x + 1) টি Fish রয়েছে = 3(x + 1) টি তাহলে তার পোষা মোট প্রাণীর সংখ্যা হবে = x + x + 1 + 3(x + 1) = 2x + 1 + 3x + 3 = (5x + 4) টি এখন, পরীক্ষার হলে আপনি x এর মান 1, 2, 3 .... ধরে উত্তর বের করলে দেখুন x = 3 হলে উত্তর হয় 19 টি । কাজেই 19 ই উত্তর ।Related questions
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