The average of 50 numbers is 30. If two numbers, 35 and 40 are discarded, then the average of the remaining numbers is nearly Choose the correct choice from the following answers:
A) 28.32 B) 28.78 C) 29.27 D) 29.68 E) None
Solution   Sum of 50 numbers	= 30 x 50   = 1500.   Sum of remaining 48 numbers	= 1500 - (35+40)= 
<gadget id="calculator">1500 - (35+40)</gadget>
<output>1_425</output>
1425.   ∴ Required average= (1425 / 48)   = 475 / 16.   = 29.68.   Answer 29.68
<result>D</result>
The average of 50 numbers is 30. If two numbers, 35 and 40 are discarded, then the average of the remaining numbers is nearly