Question

Ravi starts from his house and moves toward south. He walks 100m, then turns left and walks 200m, turns right and walk 500m. How far is he from his house?

Answer 1

Answer:

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Answer 2

Given:

Ravi starts from his house and moves toward south. He walks 100m, then turns left and walks 200m, turns right and walk 500m.

To Find:

How far is he from his house?

Solution:

Let Ravi start from any point.

By following the given directions,

Re would go 100m South, then 200m left from that point and then finally 500m right from that point .

Using the Pythagorean theorem,

Distance from house = $\sqrt{600^2 + 200^2}$ = $\sqrt{360000 + 40000}$ = $\sqrt{400000}$ = 632.52m

Hence, Ravi is 632.52m away from his house.