Sum of the numbers from 1 to 25 is	Options:	A) 210	B) 325	C) 320	D) 105	E) None of these
Explanation: Sum of first n natural numbers = 1 + 2 + 3 + ..... n = n(n+1)/2   Substitute n = 25.   So S20=25Ã—26/2=325   Correct Option: 325
<result>B</result>
Sum of the numbers from 1 to 25 is