RRB NTPC · Question 2
Two buses start from opposite points towards each other on a main road, 185 km apart. The first bus runs for 35 km and takes a right turn and runs for 17 km. It then turns left and runs for another 42 km and takes the direction back to reach the main road, in the meantime, due to a minor breakdown, the other bus has run only 36 km along the main road. What would the distance between the two buses be at this point?
Show answer & explanation
Answer: (D) 72 km
Explanation
The first bus goes 35 km along the main road, turns right 17 km, turns left and runs 42 km parallel to the main road, then comes back 17 km to the main road. It has advanced 35 + 42 = 77 km along the road. The second bus has run 36 km, so the gap is 185 − 77 − 36 = 72 km.