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Sum Of Natural Numbers

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

MathematicsIf (S_n-S_{n-4}=454), what is the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61ExpertMathematicsIf (S_{2n}=4095), what is the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61ExpertMathematicsIf (S_n-S_{90}=5775), what will be the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61ExpertMathematicsWhat is 30% of the sum of the first 200 natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61MediumMathematicsIf (S_{n+2}-S_{n-3}=625), what is the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61ExpertMathematicsIf Sₙ + Sₙ₋₁ = 5625 and Sₙ − Sₙ₋₁ = 75, what is the value of Sₙ?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61MediumMathematicsWhat is the ratio of the sums of the first (84) and first (56) natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61ExpertMathematicsIf (S_n=2701), what will be the value of (S_{n+7}-S_n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61ExpertMathematicsIf (S_{n+4}-S_{n-1}=485), what is the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61ExpertMathematicsIf (S_n-S_{n-6}=813), what will be the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61ExpertMathematicsIf Sₙ = n(n + 1)/2 and Sₙ = 7503, what is the value of n?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61MediumMathematicsIf the sum of the first n natural numbers is Sₙ = 25,425, what is the value of n?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60MediumMathematicsHow 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 60ExpertMathematicsIf (S_n-S_{n-3}=420), what is (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60ExpertMathematicsIf (S_n=11325), what will be (S_n-S_{n-6})?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60ExpertMathematicsA student added numbers from (1) to (175) and then subtracted the sum from (1) to (125). What will be the result?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60ExpertMathematicsIf (S_{n+4}-S_n=490), what is the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60ExpertMathematicsWhat is the value of (S_{78}-S_{52}+S_{26}) for sums of the first (52), first (78), and first (26) natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60ExpertMathematicsIf S_n=8911, where S_n is the sum of the first n natural numbers, what is the value of n?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60MediumMathematicsIf (S_{n+1}-S_{n-4}=595), what will be the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Expert