Question

I shall be 40 min late to reach my office if I walk from my house at 3 km/hr. I shall be 30 min early if I walk at 4
km/hr. Find the distance between my house and the office.​

Answer 1

Answer:

the distance between my house and the office.

= 14 km

Step-by-step explanation:

Let the distance between the office and his house be X

the the time taken to reach the office at speed of 3km/hr

= X / 3 hours

the the time taken to reach the office at speed of 4km/hr

= X / 4 hours

the difference between reaching time is 40 + 30 =70 minutes = 7/6 hours

X /3 - X/4 = 7/6

4X - 3X = 14

X = 14 km