Brighton 31941

Two trains left London bound for Brighton. One at 14:00 and the other at 14:20. One train moves at a speed of 120/km per hour. Kinds 150/km per hour. How far apart will they be at three o'clock?

Correct answer:

x =  20 km

Step-by-step explanation:

t1=14.00 h t2=14+20/60=34314.3333 h t3=15.00 h v1=120 km/h v2=150 km/h  x1=v1 (t3t1)=120 (1514)=120 km x2=v2 (t3t2)=150 (1514.3333)=100 km  x=x1x2=120100=20 km



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