Time & distance

Mental Ability (N tehsildar) Punjab Naib Tehsildar Exam

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A person has to travel from point B in certain time. Travelling at a speed of 5 kmph he reaches 48 minutes late and while travelling at a speed of 8 kmph he reaches 15 minutes early. What is the distance from point A to point B ?

15 kms

9 kms

12 kms

14 kms

Explanation:

Let distance between A and B be x km. (let)
Difference of time = 48 + 15
= 63 minutes = 63/60 hours
According to the question,
x/5 – x/8 = 63/60
= 3x/2 = 21
= 3x = 2 × 21
= x = (2 × 21)/3
= 14 km.

By: Pranav Gupta

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