Question

some part of a jurney 780km was made by car with a speed of 60km/h and remaining jurney was made by train with a speed of 100km/h if total timerequired for 9h find the jurney taken time for train ad distance covered by train​

Answer 1

Answer:

6hr answer.

Step-by-step explanation:

let journey by car be x km.

let journey by train be (780-x)km.

x/60+780-x/100=9.

5x+2340-3x/300=9.

2x+2340=2700.

x=2700-2340/2=360/2.

x=150km.

Distance by train=780-180.

=600km.

time=600/100=6hr.

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