Subject
Govt.Jobs
Topic
বিসিআইসি (সহকারী ব্যাবস্থাপকঃ প্রশাসন) - ১৩.০৫.২০২২
Arooz walked diagonally to cross a square field .How much less she walked (approximately ) by not walking along the boundary?
Arooz walked diagonally to cross a square field .How much less she walked (approximately ) by not walking along the boundary?
ক)
35%খ)
30%গ)
25%ঘ)
20%Explanation
মনে করি , বর্গাকার মাঠটির এক পাশের দৈর্ঘ্য =1 মিটার অতএব ,কর্ণ বরাবর গেলে অতিক্রম করে =√(1+1)² =√(1+1) =√2 মিটার অতএব , কর্ণ বরাবর যাওয়ার কারণে কম যেতে হয় =2 -√2 =2-1.41 =0.59 মিটার তাহলে শতকরা কম অতক্রম করে =0.59/2 ×100% =29.5% ≈30%Related questions
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