Question

answer me fast please​

Answer 1

Answer:

c) 8 hours

d) 200 km/h

e) 60%

Step-by-step explanation:

c) given, speed, S = 50km/hr and distance, d = 400km

we know, speed = distance/time taken

ie., 50 = 400 / t (where t is the time taken in hours )

=> t = 400 / 50 hours

ie., t = 8 hours

d) given, time, t = 5 hr and distance, d = 1000km

we know, speed = distance/time taken

ie., S = 1000 / 5 (where S is speed in km/h )

=> S = 1000 / 5 km/h

=> S = 200 km/h

e) 3/5 = (3/5) * (20/20)

= (3*20) / (5*20)

= 60 / 100

= 60%