Question

Reeta drives to North of her place of stay at $A$ and finds after travelling $25km$ that she has driven in the wrong direction. She then turns to the right and travels $2km$ and then again turns right and drives straight another $25km$. How much distance she now has to cover to go back to the point from where she started?

• A. $25km$
• B. $2km$
• C. $4km$
• D. $50km$

Answer 1

Answer: (B)

$2km$

Consider a Cartesian plane taking positive $X-$axis as East; negative $X-$axis as West; positive $Y-$axis as North and negative $Y-$axis as South.
Reeta goes along positive $Y-$axis $25km$ after that $2km$ parallel to positive $X-$axis. Finally she goes $25km$ parallel to negative $Y-$axis. Hence she reaches on $X-$axis lies at a distance of $2Km$ from the starting place.