Mathematics
Sum of first n natural numbers
Practice questions
If (S_n=300), what will be (S_{n+3})?If (S_n-S_{n-3}=114), what is the value of (n)?Which formula represents the sum of the first n natural numbers, that is, from 1 to n?Which algebraic expression represents the sum of the first \(n\) natural numbers?Subtract the sum of the first (90) natural numbers from the sum of the first (100) natural numbers. What is the result?If (S_n=1176), what will be (S_{n-1})?What is the ratio of the sum of the first (15) natural numbers to the sum of the first (10) natural numbers?If (S_n=231), what will be (S_{n+4})?What is the sum of natural numbers from (46) to (55)?If (S_n-S_{20}=250), what is the correct value of (n)?What is the difference between the sums of the first (28) and first (14) natural numbers?If the sum of the first (n) natural numbers is (1540), what is (n)?How much will be the sum of natural numbers from (71) to (80)?What is the sum of the sum of the first (20) natural numbers and the sum of the first (5) natural numbers?If (S_n=2850), what will be the value of (S_{n-5})?If (S_n-S_{n-1}=68), what will be (S_n)?If \(S_n\) is the sum of the first \(n\) natural numbers, which relation correctly represents the increase in the sum when moving from \(n\) to \(n+1\) terms?Which sum is obtained by adding (37+38) to the sum of the first (36) natural numbers?Under which condition is the sum \(S_n\) of the first \(n\) natural numbers odd?What is the difference between the sums of the first (90) and first (85) natural numbers?