Question

4. the average of 50 numbers is 30. If two numbers, 35 and 40 are discarded, then the average of the remaining numbers is nearly:

Answer 1

given average of 50numbers is 30

therefore,

30 = (x1+x2+x3+.....+x50)/50

1500 = x1+x2+.....+35+40

x1+x2+....+x48 = 1425

(x1+x2+....+x48)/48 = 1425/48=30(appox) or 25