Subject
Bank Exam
Topic
Joint Recruitment Test for 7 Banks and Financial Institutions - (Senior Officers) - 05.11.2021
What is the arithmetic mean of the first 100 natural numbers?
What is the arithmetic mean of the first 100 natural numbers?
ক)
50খ)
50.5গ)
51ঘ)
51.5Explanation
আমরা জানি , 1+2+3...+n=n(n+1)/2 ∴1+2+3...+...+100=100(100+1)/2 =(100×101)/2 =50×101 =5050 ∴ গড় =5050/100=50.5Related questions
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