I'll give the answer as they have it...
start with 5,7,9,or start wuith 6 or start with 8
\((3*5*1*3)+(1*5*1*2)+(1*5*1*2) \)
\(=45+10+10\)
\(=65\)
\(P = {65 \over 840}={13 \over 168}=0,08\)
OR
Ends in 4, or ends in 6 or end in 8
\((5*5*1*1)+(4*5*1*1)+(4*5*1*1)\)
\(=25+20+20\)
\(=65\)
\(P = {65 \over 840}={13 \over 168}=0,08\)
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