The average of 9 numbers is 104. Average of the first 5 of them is 99 and that of the last 5 is 100. Find the 5th number?  Select: A) 46 B) 59 C) 63 D) 75 E) 88
Sum of all the 9 numbers = 9 * 104= 
<gadget id="calculator">9 * 104</gadget>
<output>936</output>
936
Sum of the first 5 of them= 5 * 99= 
<gadget id="calculator">5 * 99</gadget>
<output>495</output>
495
Sum of the last 5 of them= 5 * 100= 
<gadget id="calculator">5 * 100</gadget>
<output>500</output>
500
So, the 5th number= 495 + 500 - 936= 
<gadget id="calculator">495 + 500 - 936</gadget>
<output>59</output>
59.
Answer: 59
<result>B</result>
The average of 9 numbers is 104. Average of the first 5 of them is 99 and that of the last 5 is 100. Find the 5th number?