Question

You travel an average speed of 20 km/h in a straight line to get to your grandmother's house. it takes you 3 hours to get to her house. how far away is her house from where you started?

Answer 1

20km every 1 hr is what 20km/hr means.

so 3hrs is 20km*3=60km.

Answer 2

The distance from my house to my grandmother's house is 60 km.

To calculate the distance from my house to my grandmother's house, we use the formula below.

Formula:

• S = d/t................ Equation 1

Where:

• S = Average speed
• d = distance
• t = time.

Make d the subject of the equation.

• d = St............... Equation 2

From the question,

Given:

• S = 20 km/h
• t = 3 hours.

Substitute these values into equation 2

• d = 20(3)
• d = 60 km

Hence, The distance from my house to my grandmother's house is 60 km.

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