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ആദ്യത്തെ 100 എണ്ണൽ സംഖ്യകളുടെ തുക എത്രയാണ്?

A5055

B5000

C10000

D5050

Answer:

D. 5050

Read Explanation:

n(n+1)/2 =100(101)/2 =5050


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