Average of 80 numbers are 42. When 5 more numbers are included, the average of 85 numbers become 45. Find the average of 5 numbers.	Choose the correct choice from the following answers
A) 82	B) 89	C) 93	D) 98	E) 69
Solution: Total of 80 numbers = 80*42= 
<gadget id="calculator">80*42</gadget>
<output>3_360</output>
3360;   Now, total of 85 numbers= 85*45= 
<gadget id="calculator">85*45</gadget>
<output>3_825</output>
3825;   Hence, sum of 5 numbers= 3825-3360= 
<gadget id="calculator">3825-3360</gadget>
<output>465</output>
465;   Average of five numbers= 465/5= 
<gadget id="calculator">465/5</gadget>
<output>93</output>
93.   Solve while reading Method:   Average of 80 number was 42, when 5 more numbers are added average become 45, that means 3 is given to each number to make their average 45 and 5 numbers also keep 45 as to maintain the entire average.   So, the sum of five numbers= 240+225= 
<gadget id="calculator">240+225</gadget>
<output>465</output>
465,   Hence, average of five numbers= 93.   Answer: Option 93
<result>C</result>
Average of 80 numbers are 42. When 5 more numbers are included, the average of 85 numbers become 45. Find the average of 5 numbers.