Question

A person reaches his destination 40 minutes. Late if his speed is 3km/hr and reaches 30 minutes before time if his speed is4km/hr. Find the distance of his destination from the starting point​

Answer 1

Answer:

__________

ANSWER

__________

To find the distance,

Let distance = x km.

Time taken at 3 kmph : dist/speed = x/3 = 30 min late.

time taken at 4 kmph : x/4 = 40 min earlier

difference between time taken : 40-(-30) = 70 mins = 70/60 hours.

x/3- x/4 = 70/60

x/12 = 7/6

x = 14 km.

So option B is the correct answer.

Step-by-step explanation:

Hope it helps you ✌️✌️