The world record

The world record for the longest dogtail is 77/100 meters. The previous record was 1/20 meter shorter than the current record. Was the previous record holder longer than 3/4 meter?

Result

x=




Step-by-step explanation:

b=10077=0.77 m a=b201=10077201=100771005=100775=10072=2518=0.72 m  Δ=a43=251843=1007210075=1007275=1003=1003=0.03 m  Δ<0  x=0



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