Question

Lisa is going to the market on her bicycle .The market is 3 km away from her home.If she rides at the speed of 10m/s the time required for the to and fro journey is

Answer 1

Answer:

Given:

Distance between market and home

= 3 km.

Speed of cycle = 10 m/s

To find:

Time to travel to and fro from home to market .

Conversion:

First convert distance from km to metres.

3 km = 3000 m

Calculation:

Total distance = 2 × ( distance between home and market)

=> Total distance = 2 × 3000

=> Total distance = 6000 m

$time \: = \: \frac{distance}{speed}$

=> time = 6000/10

=> time = 600 seconds.

Again convert time from seconds to minutes :

600 seconds = 600/60

= 10 minutes.

So the final answer is 10 minutes.

Answer 2

Answer:

3km= 3000m

Total distance = 2×( distance between home and market).

Total distance = 2 × 3000.

Total distance = 6000m.

Time : Distance

speed

Time = 6000/10.

Time = 600 seconds.

Therefore, We convert time from seconds to minutes :

600 seconds = 600/60.

= 10 minutes.