Calculate 7451

The car will cover a certain distance in 3 hours and 20 minutes. If he increases his speed by 10 km/h, he will cover this distance in 2.5 hours. Calculate this distance.

Correct answer:

s =  100 km

Step-by-step explanation:

t1=3:20=3 hr 20 min =3+6020=3.3333 hr3.3333 t2=2.5 h  s = v  t1 s= (v+10) t2  v t1=(v+10) t2 v 3.3333333333333=(v+10) 2.5  0.833333v=25  v=0.8333333325=30  v=30  s=v t1=30 3.3333=100 km



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