Answers

2014-06-09T23:04:13+05:30
1/20+1/30+1/42+1/56+1/72+1/90+1/110+1/132
=0.050+0.3333+0.238+0.0178+0.01388+0.0111+0.009090+0.007575
=1.054565758(ans).
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