Subject
Bank Exam
Topic
City Bank Ltd. - Probationary Officer - 2016
The cost of four rolls, six samuchas and three loaves of bread is Tk. 91. The cost of two rolls, three samuchas and one loaf of bread is Tk. 39. What is the cost of one loaf of bread ?
The cost of four rolls, six samuchas and three loaves of bread is Tk. 91. The cost of two rolls, three samuchas and one loaf of bread is Tk. 39. What is the cost of one loaf of bread ?
ক)
Tk. 10.50খ)
Tk. 11.00গ)
Tk. 12.00ঘ)
Tk. 13.00Explanation
Solution: অনুবাদঃ চারটি রোল, ছয়টি সমুচা ও তিনটি পাউরুটির মূল্য 91 টাকা আবার দুটি রোল, তিনটি সমুচা ও একটি পাউরুটির মূল্য 39 টাকা । একটি পাউরুটির মূল্য কত ? ধরি, R = Rolls; S = Samuchas; B = Bread প্রশ্নমতে, 4R + 6S + 3B = 91 ..................(i) এবং 2R + 3S + B = 39 ..........................(ii) যেহেতু, B বের করতে হবে তাই, (ii) নং কে 2 দ্বারা গুণ করতে হবে । কারণ তাহলে R এবং S কাঁটা যাবে । তাই, (ii) নং কে 2 দ্বারা গুণ করে 4R + 6S + 2B = 78 ......................(iii) এখন, {(i) - (iii) } হতে, B = 13.Related questions
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