Subject
Bank Exam
Topic
সমন্বিত ১০ ব্যাংক ও আর্থিক প্রতিষ্ঠান (সিনিয়র অফিসার) - ১০.১১.২০২৩
The perimeters of two squares are 40cm and 30cm. Find the perimeter of a third square whose area is equal to the difference of the areas of the two squares.
The perimeters of two squares are 40cm and 30cm. Find the perimeter of a third square whose area is equal to the difference of the areas of the two squares.
ক)
18cmখ)
24cmগ)
26.46cmঘ)
36cmExplanation
The perimeters of two squares are 40cm and 30cm. The sides of two squares are 40/4 cm = 10 cm and 30/4 = 7.5 cm. area of third square = 10 2 - (7.5) 2 = 100 - 56.25 = 43.75 side of third square = √43.75 = 6.614 ∴ perimeter of square = 4 × 6.614 = 26.46 cmRelated questions
ব্যাকরণের আলোচ্য বিষয় -A, B, C, D and E are five consecutive numbers in increasing order of size. Deleting one of the five numbers from the set decreased the sum of the remaining numbers in the set by 20%. Which one of the following numbers was deleted?'চির' ও 'চীর' শব্দজোড়ের অর্থ যথাক্রমে -Bowl S contains only marbles. If (1/4) of the marbles were removed, the bowl would be filled to (1/2) of its capacity. If 100 marbles were added, the bowl would be full. How many marbles are in bowl S?কোন দুটি শব্দ কেবল জন্তুর বহুবচনে ব্যবহৃত হয়?Square ABCD is inscribed in a circle whose radius is 4cm. Calculate the area of the square.নিচের কোনটি দেশী শব্দ?What is the difference between the amount of interest earned on a principal of Tk. 100 for 2 years at 10% simple interest rate and 10% compounding interest rate?