Question 319029
Rate*Time=Distance
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{{{R1=2}}}
{{{R2=10}}}
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{{{R1*T1=R2*T2}}}
{{{T1=(R2/R1))T2=(10/2)T2}}}
1.{{{T1=5*T2}}}
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2.{{{T1+T2=3}}}
Substitute eq. 1 into eq. 2,
{{{5*T2+T2=3}}}
{{{6T2=3}}}
{{{T2=1/2}}}
Then from eq. 2,
{{{T1+1/2=3}}}
{{{T1=5/2}}} hrs