Question

The ratio between the speeds of train A and train B is 3: 2. If train B runs 400 km in 4 hours, then the speed of train A is ______. Mention the speed in km/hr. and m/min.

Answer 1

Answer:

A=150km/hr

speed of B is 400/4=100km/hr

A speed:B speed=3:2

A speed:100=3:2

A speed=3×100/2

=150km/hr

Answer 2

Answer:

Speed of A = 150 km/hr

= 2500 m/min

Explanation:

Speed of B = 400/4

= 100 km/hr

$\frac{speed \: of \:A }{speed \: of \: B} = \frac{3}{2}$

$\frac{Speed \: of \: A}{100} = \frac{3}{2}$

Speed of A = (3/2) × 100

= 150 km/hr

= 150 × (1000/60) m/min

= 2500 m/min