Question

give me ans plz ..........​

Answer 1

Answer:

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Answer 2

Answer:

the answer is 42km per hour

56 km per hr.

Step-by-step explanation:

average speed of passenger train is xkm/hr. therefore. a.s of express train is (x+14)km/hr.

the time required for passenger train 168by x hrs.

and the time required for express train 168 by x+14 hrs.

frm the given condition

168 by x - 168 by x + 14 = 1

solve krke aaega x + 56 = 0 or x = 42

but speed is not negetive so x is 42km/hr.

average speed of passenger train 42km/ hr.

average speed of express train 42+14=56km/hr.

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