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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।

MathematicsWhat is the value of (S_{36}+S_{72}-S_{18})?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62HardMathematicsIn a parking arrangement, the \(r\)th row has \(5r\) vehicles. How many vehicles are there in 42 rows?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62MediumMathematicsIf (S_{2k+1}=1770), what will be the value of (k)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62HardMathematicsIf \(S_u=1431\) and \(S_v=3321\), what is the value of \(u+v\), where \(S_k=1+2+\cdots+k\)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62MediumMathematicsWhich number should be added to (S_{68}) to get (S_{75})?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62HardMathematicsOn a stage, the rth row has 4r lamps. How many lamps will there be in 35 rows?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62MediumMathematicsWhat is obtained by subtracting the sum of the first (125) natural numbers from the sum of the first (150) natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62HardMathematicsIf (S_a=2485) and (S_b=3570), what will be the value of (b-a)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62HardMathematicsFor which value of \(n\) will \(S_n-S_{n-4}=282\), where \(S_n=1+2+\cdots+n\)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62MediumMathematicsHow much greater is the sum of the first (90) natural numbers than the sum of the first (45) natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 62HardMathematicsWhat is 3 times the difference between S_48 and S_24?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61MediumMathematicsIf S_n = 1830, what is the value of S_{n+10} - S_n?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61MediumMathematicsIf (S_{3k}=1176), what will be the value of (k)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61HardMathematicsWhat is the sum of the first (150) natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61HardMathematicsWhich number should be added to (S_{44}) to get (S_{50})?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61HardMathematicsIf (S_{2p}=820), what is the value of (p)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61HardMathematicsIf (S_n=3240), what will be the value of (S_{n-4})?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61HardMathematicsWhat is the sum of (46+47+48+\cdots+90)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61HardMathematicsIf (S_a=1540) and (S_b=2080), what will be the value of (b-a)?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 61HardMathematicsWhat is 25% of the sum of the first 56 natural numbers?Class 9Sequences and ProgressionsSum of first n natural numbersLevel 60Hard