Nikhila walks to her friend's home which is at a distance of 6km from her house .She walks and comes back in 3 hours.Calculate the average speed.

3km/hr

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4km/hr

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10km/hr

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Solution

The correct option is B
4km/hr

Given, distance from Nikhila's home to her friend's = 6km

Time taken to go and come back =3hrs.

Total distance to go and come back = 6+6=12km.

$A v e r a g e s p e e d = \frac{t o t a l d i s t a n c e}{t o t a l t i m e}$

$= \frac{12}{3} = 4 k m / h r$

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Nikhila walks to her friend's home which is at a distance of 6km from her house .She walks and comes back in 3 hours.Calculate the average speed.

The correct option is B 4km/hr Given, distance from Nikhila's home to her friend's = 6km Time taken to go and come back =3hrs. Total distance to go and come back = 6+6=12km. Average speed=total distancetotal time =123=4km/hr

The correct option is B
4km/hr

Given, distance from Nikhila's home to her friend's = 6km

Time taken to go and come back =3hrs.

Total distance to go and come back = 6+6=12km.

$A v e r a g e s p e e d = \frac{t o t a l d i s t a n c e}{t o t a l t i m e}$

$= \frac{12}{3} = 4 k m / h r$