Subject
Bank Exam
Topic
Southeast Bank Ltd. - Trainee Officer - 2018
A triangular plot with sides of 25 feet, 40 feet and 55 feet is to be surrounded by a fence built of pillars set 5 feet apart. How many pillars will be required to surround the plot ?
A triangular plot with sides of 25 feet, 40 feet and 55 feet is to be surrounded by a fence built of pillars set 5 feet apart. How many pillars will be required to surround the plot ?
ক)
21খ)
22গ)
23ঘ)
24Explanation
প্লটের পরিসীমা = 25 + 40 + 55 = 120 প্রতি ৫ মিটার পর পর পিলার দিলে মোট পিলার লাগবে = ১২০/৫ টি = ২৪ টি (Note: যদি Triangle না হয়ে সোজা রাস্তা হত তাহলে একটি Pillar বেশি লাগত মানে তখন এখানে 24 এর সাথে 1 যোগ হত । কারণ Triangle এর যে বিন্দু থেকে শুরু হবে চতুর্দিকে ঘুরে আবার সেই বিন্দুতে আরেকটি Pillar দেয়া যাবে না । )Related questions
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