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A bank employee drives 10 km towards South from her house and turns to her left and drives another 20 km. She again turns left and drives 40 km, then she turns to her right and drives for another 5 km. She again turns to her right and drives another 30 km to reach her bank where she works. What is the shortest distance between her bank and her house ?

A bank employee drives 10 km towards South from her house and turns to her left and drives another 20 km. She again turns left and drives 40 km, then she turns to her right and drives for another 5 km. She again turns to her right and drives another 30 km to reach her bank where she works. What is the shortest distance between her bank and her house ? Correct Answer 25 km

According to the given information the figure is shown below,

[ alt="M21" src="//storage.googleapis.com/tb-img/production/21/12/M21.png" style="width: 450px; height: 338px;">

On analyzing the above figure we get the person travelled 40 km Southward and 40 km Northward, so the northward and southward distance cancelled out. The person has travelled 25 Km (20 Km + 5 Km) eastward.

Hence, the shortest distance between her bank and her house is 25 Km.

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