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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।

MathematicsUnder which condition will the sum of the first n natural numbers be an even number?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsWhat will be the sum of natural numbers from (40) to (80)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsWhen is the sum \(S_n\) of the first n natural numbers odd?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 MathematicsWhat is the sum of natural numbers from (15) to (45)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsIf (S_n-S_{n-2}=101), what is the value of (S_n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsWhat is the ratio of the sums of the first (45) and first (30) natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsIf (S_n-S_{30}=1110), what is the value of (n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsWhat is \(\frac{1}{3}\) of the sum of the first (36) natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsWhich of the following statements about the sum of the first n natural numbers is correct?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsIf (S_n+S_{n-1}=400) and (S_n-S_{n-1}=20), what is (S_n)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsIf \(S_n=1+2+3+\cdots+n\) is the sum of the first \(n\) natural numbers, which relation between \(S_{2n}\) and \(S_n\) is always true?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsWhat remains when (1+2+\cdots+50) is subtracted from (1+2+\cdots+80)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsWhat is the ratio of the sum of the first (25) natural numbers to the sum of the first (10) natural numbers?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 MathematicsWhen is the sum of the first n natural numbers odd?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard MathematicsWhat is the difference between the sums of the first (60) and first (40) natural numbers?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 MathematicsWhat is obtained by subtracting the sum of the first (62) natural numbers from the sum of the first (67) natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 59Medium MathematicsFind the value of S₂₅ + S₂₇, where Sₙ denotes the sum of the first n natural numbers.Class 9Sequences and ProgressionsSum of first n natural numbersLevel 59Medium