Question

Runs scored in match are 21 , 17 , x, 100,57,48,47,20,0,4,2 if mean is 30 then find the value of x

Answer 1

(21+17+x+100+57+48

+47+20+0+4+2)/11 = 30

316+x=30-11

316+x=19

x=19-316

x=-297