we are given
distance=6.7 furlongs
(a) In rods
we know that
[tex]1 furlong=40.0001 rod[/tex]
we can multiply both sides by 6.7
[tex]6.7*1 furlong=6.7*40.0001 rod[/tex]
[tex]6.7furlong=268.00067 rods[/tex]..............Answer
(b) In chains
we know that
[tex]1 furlong=10 chains[/tex]
we can multiply both sides by 6.7
[tex]6.7*1 furlong=6.7*10 chains [/tex]
[tex]6.7furlong=67 chains [/tex]..............Answer