The average of 45 results is 10. The average of first 22 of them is 15 and that of last 22 is 20. Find the 23 result? Choose the correct choice from the following answers
A) 600  B) 480  C) 750  D) 650  E) 560
23th result = sum of 45results - sum of 44 results   10*45-15*22+20*22 = 450-330+440= 
<gadget id="calculator">450-330+440</gadget>
<output>560</output>
560   Answer is 560
<result>E</result>
The average of 45 results is 10. The average of first 22 of them is 15 and that of last 22 is 20. Find the 23 result?