Mathematics
Sum of first n natural numbers
Practice questions
If the sum of the first (n) natural numbers is (2211), what is (n)?Which formula correctly represents the sum of the first n natural numbers?What is the ratio of the sum of the first (30) natural numbers to the sum of the first (20) natural numbers?If (S_n=3240), what will be (S_{n+1}-S_n)?How much is the sum of natural numbers from (81) to (90)?If the sum of the first (n) natural numbers is (2701), what is the value of (n)?What is \(\frac{1}{4}\) of the sum of the first (40) natural numbers?What is the difference between the sums of the first (75) and first (50) natural numbers?If (S_n=4950), what will (n) be?What is the sum of natural numbers from (91) to (100)?If (S_n=3160), what will be the value of (S_n-S_{n-5})?What is the sum of the first (47) natural numbers?If the sum of the first (n) natural numbers is (561), what is the value of (n)?Find the sum of natural numbers from (12) to (29).In a practice, (1) question is solved on the first day and (38) questions on the (38)th day. If the number increases by (1) daily, how many questions are solved?What is the value of (S_{22}+S_{17})?What is obtained by subtracting the sum of the first (23) natural numbers from the sum of the first (41) natural numbers?If (1+2+3+\cdots+n=946), choose the value of (n).Find the value of (S_{35}-S_{19}).In a hall, the (1)st row has (1) seat and the (26)th row has (26) seats. How many seats are there in all rows?