Urgent help. A car was traveling at the speed of 70 km/h the speed increased by 7%. calculate the new speed
Answers
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distance covered in first two hours=
70*2 = 140 km
distance left = (345–140)km = 205 km
New speed= (70+10) km/hr = 80 km/hr
So, distance covered in next 2 hours=
80*2 km = 160 km
distance left = (205–160)km = 45 km
New speed = (80+10) km/hr = 90 km/hr
So, time taken to cover 45 km at the speed of 90 km per hour =
45km/90kmh=1/2 hr = 30 min
Hence, total time taken to cover 345 km=
4 hours 30 minutes
Answer:
distance covered in first two hours=
70*2 = 140 km
distance left = (345–140)km = 205 km
New speed= (70+10) km/hr = 80 km/hr
So, distance covered in next 2 hours=
80*2 km = 160 km
distance left = (205–160)km = 45 km
New speed = (80+10) km/hr = 90 km/hr
So, time taken to cover 45 km at the speed of 90 km per hour =
45km/90kmh=1/2 hr = 30 min
Hence, total time taken to cover 345 km=
4 hours 30 minutes
Step-by-step explanation: