A car is moving with a uniform speed of 50 2/5 km/h. How long will it take to travel a distance of 200 km 100m? How much distance will it cover in 10 1/2 hours
Answers
Answer: 3.97 h, 529.2 km
Step-by-step explanation:
We have, a car moving with speed of
(50+2/5)km/h = (50*5+2)/5= 252/5km/h
Distance to travel= 200km 100m = 200.1km
Time taken = Distance/speed
= 200.1/252/5
=3.97h
2) Now,
Distance covered in time = 10+1/2= 10.5h
Distance = speed * time
= 252/5*10.5
=529.2km
Finally, Required distance = 529.2km ,
Required Time = 3.97 h
Answer:
1. answer is 667/168
2. answer is 529.2
Step-by-step explanation: speed = 252 / 5 km / h
distance = 200 km 100m= 200km 100 / 1000 = 200 1/10km = 2001/ 10 km
time = d/ s = 2001 / 10 ÷ 252 / 5 (÷ means fraction wala divide)
= 2001/10 × 5 / 252 = 2001/ 504
= 667/168hr or 3 163/168 hr
2. time = 10 1/2hr = 21 / 2hr
speed = 50 2/5km / hr = 252/2 km /hr
distance= t × s = 21 / 2 × 252/5
= 2646 / 5 = 529.2km