• # question_answer Laxman went 15 km to the West from his house, then turned left and walked 20 km. He then turned East and 25 km and finally turning left covered 20 km. How far was he from his house? A)  5 km    B)         10 km C)  40 km  D)  80 km

The movement of Laxman are shown in the adjacent figure. $\therefore$Laxman's distance from his house at A. $=AE=(BE-BA)$           (BE=CD) $=(CD-BA)=(25-15)=10\,\,\text{km}$