Question

please give me full explanation​

Answer 1

Answer:

100 km/hr

Step-by-step explanation:

Answer 2

Answer:

The speed of the other train is 50 km/h

Step-by-step explanation:

Given:-

Length of train A = 600m

= 3/5 km

Length of train B = 500m

= 1/2 km

Speed of train A = 60km/h

Total time taken to cross each other = 0.6 min

= 1/100 hr

distance travelled by train A = speed x time

= 60 x 1/00

= 3/5 km

distance travelled by train B = speed of train B x time

Let speed of train B be ' y ' km/h

then distance = y/100 km

But we know that the total distance to cross each other = 500m + 600m

= 1/2 + 3/5

= 11/10 km

distance travelled by train A + distance travelled by train B = 11/10

=> 3/5 + y/100 = 11/10

=> y + 60 = 110

=> y = 50 km/h

Hence, the speed of the other train is 50 km/h