Question

प्रथम 100 प्राकृतिक संख्या का average ज्ञात करे

Answer 1

(1+2+3.......+100)/100
use formula for sum n(n+1)/2
100(100+1)/2= 100*101/2 = 5050
average is 5050/100 = 50.5 is your answer