ashna

a motor car covers 1/3 part of total distance with velocity V1 = 10km/hr and second 1/3 part with velocity V2 = 20km/hr and rest 1/3 part with velocity V3 = 60km/hr . What is the average speed of the car ?

Delete
Share
This Question is Closed

sauravshakya

Best Response

You've already chosen the best response.

1
Average speed of the car = (V1+V2+V3)/3

sauravshakya

Best Response

You've already chosen the best response.

1
now can u?

ashna

Best Response

You've already chosen the best response.

1
Avg speed = 10+20+60 / 3
= 90/3
= 30km/hr
correct ?

sauravshakya

Best Response

You've already chosen the best response.

1
very correct

sauravshakya

Best Response

You've already chosen the best response.

1
u got it?

ashna

Best Response

You've already chosen the best response.

1
why the velocities / 3 ?

sauravshakya

Best Response

You've already chosen the best response.

1
Actually it was like this:
Average speed of the car = 1/3 V1 + 1/3 V2 + 1/3 V3
= (V1+V2+V3)/3

sauravshakya

Best Response

You've already chosen the best response.

1
got it?

ashna

Best Response

You've already chosen the best response.

1
oh okay .. thanks :)