Subject
Bank Exam
Topic
বাংলাদেশ ব্যাংক (সহকারী পরিচালক) - ২৮.১০.২০২২
The difference between the length and breadth of a rectangle is 23 meter. If its perimeter is 206 meter, then, its area is
The difference between the length and breadth of a rectangle is 23 meter. If its perimeter is 206 meter, then, its area is
ক)
1520 sq meterখ)
2480 sq meterগ)
2520 sq meterঘ)
2420 sq meterExplanation
মনে করি , আয়তক্ষেত্রটির দৈর্ঘ্য =x মি এবং প্রস্থ =y মি প্রশ্নমতে , x-y=23....(i) বা,2(x+y)=206 বা,x+y=103...(ii) (i)+(ii) 2x=126 বা,x=63 (ii) 63+y=103 বা,y=103-63 বা,y=40 অতএব , ক্ষেত্রফল =xy =63× 40 =2520 বর্গ মিRelated questions
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