Question

If the mean of first x natural numbers is 26. Find the sum of the first x natural numbers.​
A)1320
B)1362
C)1632
D)1326

Answer 1

Step-by-step explanation:

mean of first x natural number

(x + 1)/2 = 26

x + 1 = 52

x = 51

Sum of first x natural number

x(x + 1)/2

51 (52)/2

51 * 26

26 * (52 - 1)

1352 - 26

= 1326

I hope it will help you