2Paul reaches office from home 12 before, if he goes at a speed of 15 kmph. He reaches office 20minutes late if he travels at a speed of 9 kmph. Find the distance between his office to home? About the author Isabella
Step-by-step explanation: 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. Reply
Step-by-step explanation:
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.