• # 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

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