question_answer

A and B start walking, from a point, in opposite directions. A covers 3 km and B covers 4 km. Then A turns right and walks 4 km while B turns left and walks 3 km. How far is each from the starting point?

A)  5km                           

B)         4km               

C)         10km                         

D)         8km               

Correct Answer: A

Solution :

Here, O is the starting point. Both A and B are \[\sqrt{{{3}^{2}}+{{4}^{2}}}=5\,km\] from the starting point.