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Answer 1 · 2018-01-26T13:18:58

Date from wikipedia:

#m_o.=3,3298 xx 10^5m_o+#

and

#r_o.=109 r_o+#

#m_o.=1.9891 × 10^30 kg#

#m_o+=5.9736×10^24kg#

#m_o./m_o+=(1.9891 × 10^30)/(5.9736×10^24)=3,3298xx10^5#

#r_o.=6.963×10^8 m#

#r_o+=6.378×10^6 m#

#r_o./r_o+=(6.963×10^8)/(6.378×10^6)=109#