# I go from my home to office at speed of 95km\h for 130 min and I come back at speed of 60km/h in 3 hrs 20 min.

2
by ajaygogia66

so what do u want

what do you want?

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by ajaygogia66

so what do u want

what do you want?

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Solution :

home to office speed = 95 km/ hr

= 95 *1000 m / 60*60 s

= 95 * 5 /18 m/s

= 475/18 m/s

time taken from home to reach office = 130 minutes

= 130 * 60 sec

=7800 s

Therefore ,

Office to home Speed = 60 km /hr

= 60 *1000 / 60*60 m/s

= 60 *5 /18 m/s

= 300 / 18 m/s

time taken from office to home = 3hr 20 min

= 3*60*60 seconds + 20*60 seconds

=(10800 + 1200)seconds

= 1200 seconds

Average Velocity = 2 v1 v2 / v1 +v2

v1= velocity from home to office

v2 = velocity from office to home

= 2*95*60 /(95+60) km/hr

=11400 /155 km/hr

= 73.54 km/hr