Subject
Bank Exam
Topic
বাংলাদেশ ব্যাংক (সহকারী পরিচালক) - ২৮.১০.২০২২
At a stationary shop, it costs Tk. 185 for 4 gel-pens, 8ball-point pens and 1 marker pen and Tk. 315 for 7 gel-pens, 15 ball-point pens and 1 marker pen. What would be the cost of 1 gel-pen, 1 ball-point pen and 1 marker pen?
At a stationary shop, it costs Tk. 185 for 4 gel-pens, 8ball-point pens and 1 marker pen and Tk. 315 for 7 gel-pens, 15 ball-point pens and 1 marker pen. What would be the cost of 1 gel-pen, 1 ball-point pen and 1 marker pen?
ক)
Tk. 45খ)
Tk. 60গ)
Tk. 55ঘ)
Tk. 70Explanation
এখানে , 4G+8B+1M=185.......(i) 7G+15B+1M=315 (ii) (ii)-(i) 7G+15B+1M=315 4G+8B+1M=185 _________________________ 3G+7B =130 বা, 2(3G+7B)=130×2 বা,6B+14B=260 (ii)-(iii) বা, 7G+15B+1M=315 6G+14B =260 ____________________ 1G+1B+1M=55 1 টি জেল পেন , 1 টি বল পেন ও 1 টি মার্কার পেনের একত্রে মূল্য 55 টাকা ।Related questions
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