A passenger train takes 1 hour less for a journey of 120 km, if its speed is increased by 10 km/hour from its usual speed. What is its usual speed?

A passenger train takes 1 hour less for a journey of 120 km, if its sp

1.	A passenger train takes 1 hour less for a journey of 120 km, if its speed is increased by 10 km/hour from its usual speed. What is its usual speed?
A.	50 km/hour
B.	40 km/hour
C.	35 km/hour
D.	30 km/hour
Answer» E.

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A passenger train takes 1 hour less for a journey of 120 km, if its speed is increased by 10 km/hour from its usual speed. What is its usual speed?

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