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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।

MathematicsIf (S_n=1225), what will be the value of (S_{2n})?Class 9Sequences and ProgressionsSum of first n natural numbersExpert MathematicsIf (S_n-S_{100}=15150), what is the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersExpert MathematicsWhich expression correctly represents the sum of the first n natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersExpert MathematicsIf S_n=7140, where S_n is the sum of the first n natural numbers, what is the value of S_(n+5)−S_n?Class 9Sequences and ProgressionsSum of first n natural numbersHard MathematicsIf 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 numbersMedium MathematicsHow much is the sum of natural numbers from (201) to (250)?Class 9Sequences and ProgressionsSum of first n natural numbersExpert 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 numbersExpert MathematicsIf (S_n=15400), what is the value of (S_{n-10})?Class 9Sequences and ProgressionsSum of first n natural numbersExpert MathematicsIf (S_{3n}=1770), what is the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersExpert MathematicsIf (S_n=20100), what will be the value of (S_n-S_{n-8})?Class 9Sequences and ProgressionsSum of first n natural numbersExpert MathematicsIf (S_n-S_{70}=5250), what is the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersExpert MathematicsWhat is 20% of the sum of the first 150 natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersMedium MathematicsIf (S_n=7875), what is the value of (S_{n-7})?Class 9Sequences and ProgressionsSum of first n natural numbersExpert MathematicsIf S_n+S_(n−1)=4212 and S_n−S_(n−1)=65, what is the value of S_n?Class 9Sequences and ProgressionsSum of first n natural numbersHard MathematicsIf S_n=n(n+1)/2 and S_n=6670, what is the value of n?Class 9Sequences and ProgressionsSum of first n natural numbersMedium MathematicsIf (S_y=15931), what will be the value of (S_{y+3})?Class 9Sequences and ProgressionsSum of first n natural numbersExpert MathematicsWhat is 4 times the difference between S_96 and S_48, where S_n is the sum of the first n natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersMedium MathematicsIf (S_n=20100), what is the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersExpert MathematicsWhat is the value of S₃₀₀ − S₂₈₅, where Sₙ is the sum of the first n natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersMedium MathematicsIf (S_{n+3}-S_{n-3}=615), what will be the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersExpert