Subject
Bank Exam
Topic
Standard Bank Ltd. - Trainee Assistant Officer - 2018
If the width of a rectangle is increased by 25% and the length is decreased by 25%, the resulting area is what percent of the original data.
If the width of a rectangle is increased by 25% and the length is decreased by 25%, the resulting area is what percent of the original data.
ক)
90%খ)
100%গ)
93.75%ঘ)
1.25%Explanation
Solution: প্রশ্নে বলা হচ্ছে, আয়তাক্ষেত্রের প্রস্থ 25% বাড়ানো হলে এবং 25% কমানো হলে ক্ষেত্রফল শতকরা কত বাড়বে ? আয়তাক্ষেত্রের দৈর্ঘ্য ও প্রস্থ হ্রাস বৃদ্ধির ক্ষেত্র নিচের বহুল ব্যবহৃত সূত্রটি প্রয়োগ করবেন । A + B + [ এখানে বৃদ্ধির ক্ষেত্রে (+) এবং হ্রাসের ক্ষেত্র (-) ব্যবহার করবেন ] = 25 + (- 25) + = - 6.25% Resulting Area = 100 - 6.25 = 93.75%Related questions
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