One day, Ganesh left home and cycled 10 km southwards, turned right and cycled 5 km; turned right and cycled 10 km and finally turned left and cycled 10 km. How many kilometers will he have to cycle to reach his home straight?

Show answer & explanation

Answer: (B) 15

Explanation

He goes 10 km south, turns right (west) 5 km, turns right (north) 10 km – now 5 km due west of home – then turns left (west) 10 km. He is 15 km west of home.