A bus covers certain distance in 7 ½ hours at a speed of 60km/h . In how many hours will the bus reach at its destination when moving at a speed of 75km/h ?
( Pls give solution with full explanation )
( Pls give solution with full explanation )
Copyright © 2024 EHUB.TIPS team's - All rights reserved.
Answers & Comments
Answer:
9hours because when he is coming to office today morning
Verified answer
Answer:
It will take 6 hrs to reach destination if travelling at a speed of 75 km/h.
Step-by-step explanation:
We know the formula for time taken (T),
T = Distance/Speed
As we know that distance is going to stay constant therefore,
T ∝ 1/Speed
So time in first case,t1 = 7 + 1/2 = (14 + 1)/2 = 15/2 hrs
And speed = 60 km/h.
And in second case t2 = x
Speed = 75 km/h
Using the relation between time and speed,
t1/t2 = 75/60
(15/2)/x = 5/4
15/2x = 5/4
Multiply and divide rhs by 3,
15/2x = 15/12
Direct comparing,
2x = 12
x = 12/2
x = 6
So it will take 6 hrs to reach destination with speed of 75 km/hr.