Roopali walks 10 m in front and 10 m to the right. Then every time turning to left she walks 5, 15 and 15 m, respectively. How far is she from her starting point ?

The correct answer is (c).

Roopali walks 10 m in front and 10 m to the right, so she is now 10 m to the right of her starting point. Then she turns left and walks 5 m, so she is now 5 m to the left of her starting point. She then turns left again and walks 15 m, so she is now 10 m to the right of her starting point. She then turns left again and walks 15 m, so she is now 5 m to the left of her starting point. Therefore, she is 5 m from her starting point.

Option (a) is incorrect because Roopali is 5 m to the left of her starting point, not 10 m to the right.

Option (b) is incorrect because Roopali is 5 m from her starting point, not 20 m from her starting point.

Option (d) is incorrect because Roopali is 5 m from her starting point, not 15 m from her starting point.