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Class 9 Mathematics

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

MathematicsIf (S_{n+1}-S_{n-2}=150), what will be the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsFind the sum of natural numbers from (121) to (150).Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsIf (S_n=4560), what is the value of (S_{n+5}-S_n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsWhat is half of the sum of the first (84) natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsIf \(S_n\) is the sum of the first \(n\) natural numbers, which recurrence relation is always correct for \(n\ge2\)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsWhat is the sum of natural numbers from (25) to (75)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsIf (S_n=3655), what will be (S_n-S_{n-4})?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsIf (S_n-S_{50}=1575), what is the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsWhat is the difference between the sums of the first (72) and first (48) natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsIf the sum of the first (n) natural numbers is (S_n), what is (S_{n+1}-S_{n-1}) equal to?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsWhat is the sum of natural numbers from (15) to (45)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsHow much is the sum of natural numbers from (101) to (120)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsIf \(S_n=\frac{n(n+1)}{2}\), what is the value of \(S_{2n}\) when \(n=15\)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsIf (S_n=595), what is (S_{n+6}-S_n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsFind the sum of natural numbers from (51) to (75).Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsIf (S_n-S_{n-4}=250), what will be the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsWhat is the sum of natural numbers from (26) to (50)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsIf \(S_n=\frac{n(n+1)}{2}\) and \(S_n=861\), what is the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsFind the value of (S_{35}-S_{19}).Class 9Sequences and ProgressionsSum of first n natural numbersLevel 59Medium MathematicsIf (S_n=4950), what will (n) be?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61Medium