Question

a train cover 150 km in 3 h next 125 km in 2 h and last 180 km in 3 h 30 min find average speed​

Answer 1

Answer:

Step-by-step explanation:

Average speed

= total distance cover /2

= 150+125+180/2

=455 /2

=227.5 km/hr

Answer 2

hi

Answer:

53.52 km/hour

approx 54 km/ hr

Step-by-step explanation:

d1 = 150km , d2=125km , d3=180km

t1 = 3hours. , t2=2hours, t3=3hours& 30mins

t 3 = 3 + 30/60

= 3 + 1/2

=7/2

average speed = total distance / total time

s = 150 + 125 + 180 / 3 + 2 + ( 7/2 )

s = 455 / (17/2)

s= 455 × 2 / 17

s = 53.52 km/hr

gud day