Subject
Bank Exam
Topic
সমন্বিত ৯ ব্যাংক আর্থিক প্রতিষ্ঠান (সিনিয়র অফিসার)-২০.০১.২০২৩
The area of the floor of an auditorium is 600 sq meter. How many unbroken tiles of dimension 10 x 30 cm2will be required to cover the floor completely?
The area of the floor of an auditorium is 600 sq meter. How many unbroken tiles of dimension 10 x 30 cm2will be required to cover the floor completely?
ক)
200খ)
15000গ)
1000ঘ)
20000Explanation
দেওয়া আছে, টাইলসের দৈর্ঘ = 30 cm =30/100 m = 0.3 m টাইলসের প্রস্থ = 10 cm =10/100 m =0.1 m ∴ টাইলসের ক্ষেত্রফল = 0.3 × 0.1 = 0.03 m 2 আবার, অডিটরিয়ামের ক্ষেত্রফল = 600 m 2 তাহলে, অডিটরিয়ামের ফ্লোরে টাইলসের সংখ্যা লাগবে = 300/0.03 = 20000 টিRelated questions
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