Subject
Bank Exam
Topic
উত্তরা ব্যাংক (প্রবেশনারি অফিসার) - ০৯.১১.২০২৪
AC, a diagonal of the rectangle ABCD, measures 5 units. The area of the rectangle is 12 square units. What is the perimeter of the rectangle?
AC, a diagonal of the rectangle ABCD, measures 5 units. The area of the rectangle is 12 square units. What is the perimeter of the rectangle?
ক)
7 unitখ)
14 unitগ)
17 unitঘ)
21 unitExplanation
ধরি, আয়তক্ষেত্রটির দৈর্ঘ্য = x এবং আয়তক্ষেত্রটির প্রস্থ = y ∴ কর্ণ = √(x² + y²) এবং ক্ষেত্রফল = xy প্রশ্নমতে, √(x² + y²) = 5 এবং xy = 12 ..... (ii) ⇒ x² + y² = 25 ..... (i) এখন, x = 4 এবং y = 3 হলে (i) ও (ii) নং সিদ্ধ হয়। ∴ পরিসীমা = 2(4 + 3) = 2 × 7 = 14 এককRelated questions
X can do a piece of work in 24 days. When he had worked for 4 days, Y joined him. If the work was completed in 16 days, Y alone can finish that work in:'কথাসাহিত্য' বলতে কোনটি বোঝায়?A can contains a mixture of two liquids A and B in the ratio 7 : 5. When 9 liters of mixtures are drawn off and the can is filled with B, the ratio of A and B becomes 7 : 9. How many liters of liquid A was contained by the can initially?কোনটি অব্যয়ীভাব সমাস?If simple interest on Tk. 600 for 4 years and on Tk. 600 for 2 years combined is Tk. 180, find the rate of interest.'বর্ণপরিচয়' এর লেখক কে?A committee of 5 members is to be formed out of 3 trainees, 4 professors and 6 research associates. In how many different ways can this be done if the committee should have 2 trainees 1 and 2 research associates?'দুর্গেশনন্দিনী' শব্দের অর্থ কী?