Answers

2014-03-07T15:28:37+05:30
1597.5=a*5857.5/20+a
1597.5*20/5857.5=a+a
1597.5*20/5857.5=2a
5.45=2a
5.45/2=a
a=2.72

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2014-03-07T20:00:55+05:30
1597.5=a*5857.5/20+a
1597.5*20/5857.5=a+a 
1597.5*20/5857.5=2a                 
5.45=2a
5.45/2=a          (divide it by 2 to get the answer)
a=2.72
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