Question

if the average of marks obtained by class 5 is 35 26,45,37,43,49,20,X,22,30.find value of X

Answer 1

Answer:

43

Step-by-step explanation:

$\frac{26 + 45 + 37 + 43 + 49 +20 + x + 22 + 30 }{9} = 35$

$272 + x = 315$

$x = 315 - 272$

$x = 43$