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Natural Numbers

Class 9 Mathematics के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

MathematicsLet \(S_n=1+2+3+\cdots+n\). Which expression represents the sum of the last 8 consecutive natural numbers ending at \(n\)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsWhat is (40%) of the sum of the first (125) natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsIf (S_n-S_{n-1}=150), what will be (S_{n-1})?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsIf (S_n=7626), what is the value of (S_{n+2})?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsWhat is the difference between the sum from (1) to (250) and the sum from (1) to (200)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsHow much more is the sum of the first (180) natural numbers than the sum of the first (179) natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsIf (S_{n+1}-S_{n-2}=330), what will be the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsIf (S_n+S_{n-1}=1260) and (S_n-S_{n-1}=36), which is the value of (S_n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsFind the sum of natural numbers from (151) to (225).Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsIf (S_n=6903), what is the value of (S_{n+5}-S_n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsWhat is half of the sum of the first (144) natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsWhat is the sum of natural numbers from (63) to (150)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsWhich of the following expressions represents the sum of the first n natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsWhat is the ratio of the sums of the first (120) and first (80) natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsIf (S_n=1225), what will be the value of (S_{2n})?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsIf (S_n-S_{100}=15150), what is the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsWhich expression correctly represents the sum of the first n natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsWhat is the difference between the sums of the first (180) and first (90) natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsHow much is the sum of natural numbers from (201) to (250)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert MathematicsIf (S_n+S_{n-2}=10000) and (S_n-S_{n-2}=199), what will (S_n) be?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert