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The average of 50 numbers is 30. If two numbers, 35 and 40 are discarded, then the average of the remaining number is nearly?
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(total)/50=30

total=1500

1500-35-40(because 35,40 descarded)=1425

avg=1425/48=29.6875
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Total sum of all numbers=50*30

Now, we discard numbers 35 and 40

This leaves us with a total sum of (50*30-(35+40)) i,e., 1425

This is the total sum of 50-2 numbers

So, their average is (total sum)/(total numbers)= 1425/48= 29.69
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