The radius of a circle is increased so that and circumference by 5%. The area of the circle will be increased by.

A 5%
B 10%
C 10.25%
D 10.5%

Correct Answer: 10.25%

বৃত্তের পরিধি বৃদ্ধির ক্ষেত্রে, ক্ষেত্রফল বৃদ্ধি = + 5% + 5% + 5×5100% = 10% + 0.25% = 10.25% .: বৃত্তের পরিধী 5% বৃদ্ধিপেলে ক্ষেত্রফল 10.25% বৃদ্ধি পাবে।
Bissoy MCQ
#গণিত #শতকরা (Percentage) #Janata Bank Ltd #সিনিয়র অফিসার (টেক্সটাইল) - 06.11.2020

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