The average of 50 numbers id 20. If two numbers, namely 45 and 55 are discarded, the average of the remaining numbers is : Options.
A) 22.75
B) 33.25
C) 22.25
D) 11.75
E) 18.75
18.75xplanation:   Total of 50 numbers = (50×20)=1000   Total of 48 numbers =(1000-(45+55)]=900   Required average = 900/48= 
<gadget id="calculator">900/48</gadget>
<output>75/4 = around 18.75</output>
18.75   Answer:18.75
<result>E</result>
The average of 50 numbers id 20. If two numbers, namely 45 and 55 are discarded, the average of the remaining numbers is :