Quantitative Aptitude :: Time and Distance - Discussion
Home > Quantitative Aptitude > Time and Distance > MCQs Questions Discussion
33 / 88
Choose the correct option.
Walking 5/6 of its usual speed, a train is 10min late. Find the usual time to cover the journey?
A55 min.
B45 min.
C35 min.
D50 min.
Answer: Option (Login/Signup)
Show Explanation
Asked In ::
STEP-BY-STEP
Suppose that the train travels a distance of d miles at a rate of r miles per minute in t hours. Then:
d = rt.
Then, if the train travels a distance of d miles at a rate of (5/6)r miles per minute in t 10 hours:
d = (5/6)r(t 10).
Equating the values of d:
rt = (5/6)r(t 10)
==> t = (5/6)(t 10), by dividing both sides by r
==> t = (5/6)t 25/3
==> (1/6)t = 25/3
==> t = 6 * 25/3 = 50 minutes.
Read Full Answer
Report Error
Please Login First Click Here