Clock error

How much does a watch lose per day, if its hands coincide every 64 minutes?

Correct answer:

t =  32 811 = 360/11 min

Step-by-step explanation:

t1=64 min  1 + 12 60x = 60x  1+720x=60x  1+x/720=x/60  11x=720  x=11720=65.45454545  x=1172065.454545  n=t124 60=6424 60=245=22.5  Δt=t1x=6465.4545=11161.4545 min  t=Δt n=1.4545 22.5=11360 min=32.7273 min



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