Find the sum of first 20 natural numbers
Asked by admin @ in Math viewed by 336 People
What is the sum of the first 20 natural numbers?
Asked by admin @ in Math viewed by 336 People
What is the sum of the first 20 natural numbers?
Answered by admin @
n(n+1)/2=20(20+1)/2
=20(21)/2
=420/2
=210
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