Question : Two people A and B started running from the same point on a circular track of length 400 m in opposite directions with initial speeds of 10 m/s and 40 m/s, respectively. Whenever they meet, A's speed doubles and B's speed halves. After what time from the start will they meet for the third time?

Option 1: 30 sec

Option 2: 24 sec

Option 3: 26 sec

Option 4: 28 sec

Question : $\mathrm{A}$ and $\mathrm{B}$ are running on a circular track of length $1400 \;\mathrm{m}$. The speed of $\mathrm{A}$ is $33\; \mathrm{m/s}$ and the speed of $\mathrm{B}$ is $47\; \mathrm{m/s}$. They start from the same point at the same time in the opposite

Question : Two persons A and B are running around a circular track of length 1200 m with respective speeds of 27 kmph and 36 kmph. They started at the same time from the same point and are running in the same direction. When will they meet for the first time on the track (in seconds)?

Question : In a circular race of 1500 m. Anil and Bilal start from the same point and at the same time with speeds of 36 km/hr and 54 km/hr respectively. When will they meet again for the first time on the track when they are running in the same direction?

Question : Two trains that are 125 m and 99 m in length, respectively, are running in opposite directions at the speeds of 40 km/h and 32 km/hr, respectively. In how much time will they be completely clear of each other from the moment they meet?

Question : Anil and Arun started for car race from the same point in the same direction and at the same time on a circular track of length 2575 m with speeds 72 km/hr and 90 km/hr, respectively. After how much time (in seconds) will they meet again for the first time?