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What is the ratio of the sums of the first (120) and first (80) natural numbers?पहले (120) और पहले (80) प्राकृतिक संख्याओं के योगों का अनुपात क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (121:81)(121:81)
(S_{120}:S_{80}=7260:3240=121:54), so the listed options do not contain the correct simplified ratio. Simplify fully.(S_{120}:S_{80}=7260:3240=121:54), इसलिए दिए विकल्पों में सही सरल अनुपात नहीं है। अनुपात को पूरा सरल करें।
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