a man travelled from Hyderabad to Bangalore he travelled first hundred kilometres in 2 hours and next 150 km in 4 hours and the remaining 200 km in 6 hours. find the average speed?
Answers
Answer:
Answer:
Step-by-step explanation:
Let the total distance be x.
Time = Distance / speed
Distance covered at 80 km/h is :
= 1/3x
Time taken = 1/3x × 1/80 = 1/240x
Distance covered by 60 km/h is :
= 1/4x
Time = 1/4x × 1/60 = 1/240x
Distance covered at 100km/h is :
= 1/6x
Time taken = 1/6x × 1/100 = 1/600x
Distance covered at 50km/h is :
1 - (1/4 + 1/3 + 1/6) = 1/4x
Time = 1/4x × 1/50 = 1/200x
Total time taken is :
1/240x + 1/240x + 1/600x + 1/200x = 3/200x
Average speed = Total distance / Total time
This is given by :
x ÷ 3/200x
= x × 200/3x = 200/3
= 66.67 km/h
Answer:
=Let the total distance be x.
Time = Distance / speed
Distance covered at 80 km/h is :
= 1/3x
Time taken = 1/3x × 1/80 = 1/240x
Distance covered by 60 km/h is :
= 1/4x
Time = 1/4x × 1/60 = 1/240x
Distance covered at 100km/h is :
= 1/6x
Time taken = 1/6x × 1/100 = 1/600x
Distance covered at 50km/h is :
1 - (1/4 + 1/3 + 1/6) = 1/4x
Time = 1/4x × 1/50 = 1/200x
Total time taken is :
1/240x + 1/240x + 1/600x + 1/200x = 3/200x
Average speed = Total distance / Total time
This is given by :
x ÷ 3/200x
= x × 200/3x = 200/3
= 66.67 km/h
Step-by-step explanation: