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

MathematicsA staircase figure has (3160) blocks in total, and the (r)th row has (r) blocks. What is the number of rows?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 59ExpertMathematicsFor which (n) will (S_n-S_{n-5}=535)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 59ExpertMathematicsAt which (n) will (S_n) first become greater than (12000)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 59ExpertMathematicsHow much greater is the sum of the first (120) natural numbers than the sum of the first (60) natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 59ExpertMathematicsWhat is the value of (S_{88}+S_{90}-2S_{89})?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 59ExpertMathematicsWhat will be the value of (S_{150}-S_{140})?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 59ExpertMathematicsIf the sum of the first (n) natural numbers is (4950), what is the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 59ExpertMathematicsFind the value of (S_{29}+S_{58}+S_{87}).Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62HardMathematicsIf (S_n=7875), what is the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62HardMathematicsWhich sum is obtained by adding (116+117+118+119+120) to (S_{115})?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62HardMathematicsAt which (n) will (S_n) first become greater than (20000)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62HardMathematicsWhat is the value of (S_{70}+S_{71}-S_{69})?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62HardMathematicsWhat is (12.5%) of the sum of the first (96) natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62HardMathematicsIf (S_n=5460), what will be the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62HardMathematicsFind the value of (S_{64}+S_{84}-S_{74}).Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62HardMathematicsWhat is the value of (S_{35}+S_{55}+S_{75})?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62HardMathematicsAt which (n) will (S_n) first become greater than (10000)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62HardMathematicsA staircase figure has (2211) tiles in total, and the (r)th row has (r) tiles. What is the number of rows?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62HardMathematicsAt which (n) will (S_n) first become greater than (7000)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62HardMathematicsWhat is the value of (S_{75}+S_{77}-2S_{76})?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62Hard