Find the final reading of the odometer, given below is the journey details:
Initial reading of the odometer $= 3891 k m$
Journey time $= 420 m i n s$
Speed $= 50 k m / h .$

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Solution

We are given:
Initial reading of the odometer $= 3891 k m$
time $= 420 m i n s = \frac{420}{60} = 7 h$
speed $= 50 k m / h .$
We know that,
$D i s tan c e = s p e e d \times t i m e = 50 \times 7 = 350 k m .$
Therefore, the final reading of the odometer is $= 3891 + 350 = 4241 k m$

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Find the final reading of the odometer, given below is the journey details: Initial reading of the odometer = 3891 km Journey time = 420 mins Speed = 50 km/h.

We are given: Initial reading of the odometer = 3891 km time = 420 mins = 42060=7 h speed = 50 km/h. We know that, Distance = speed×time = 50×7 = 350 km. Therefore, the final reading of the odometer is =3891+350 = 4241 km

Find the final reading of the odometer, given below is the journey details:
Initial reading of the odometer $= 3891 k m$
Journey time $= 420 m i n s$
Speed $= 50 k m / h .$

We are given:
Initial reading of the odometer $= 3891 k m$
time $= 420 m i n s = \frac{420}{60} = 7 h$
speed $= 50 k m / h .$
We know that,
$D i s tan c e = s p e e d \times t i m e = 50 \times 7 = 350 k m .$
Therefore, the final reading of the odometer is $= 3891 + 350 = 4241 k m$