Pujara has a certain average of runs for his 8 matches in Border Gavaskar Trophy. In the ninth match he scores 100 runs and thereby increases his average by 9 runs. His new average of runs is:
Select
A) 28
B) 29
C) 30
D) 31
E) 32
let his average run in 8 matches be x   total runs for 8 matches = 8x   total runs for 9 matches = 8x+100   average runs for 9 matches = (8x+100)/9   (8x+100)/9 = x + 9   8x+100 = 9x + 81   x= 19   new average = 19+9= 
<gadget id="calculator">19+9</gadget>
<output>28</output>
28   28NSWER:28
<result>A</result>
Pujara has a certain average of runs for his 8 matches in Border Gavaskar Trophy. In the ninth match he scores 100 runs and thereby increases his average by 9 runs. His new average of runs is: