Rishu went 5 km towards the west from her house. From here, she turned left and covered a distance of 4 km . She took a left turn again and covered a distance of 5 km . She finally turned right and travelled 3 km and stopped. What is the shortest distance between the point where she stopped and her house? (All turns are 90$$^o$$​ turns only)

Rishu went 5 km towards the west from her house.

She turned left and covered a distance of 4 km (south).

She took another left turn and covered a distance of 5 km (east).

She finally turned right and traveled 3 km (south).

There is = (3 + 4 =7 km) distance between the point where she stopped and her house.

Thus, correct option is (a).

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