Train X with speed 36km/h and train Y with speed 15m/s start from A at the same time to reach B. After one hour train Y has a breakdown. Engine Z starts with a speed of 90km/h from B just after the breakdown. The engine crosses X in one and half h…

Train X with speed 36km/h and train Y with speed 15m/s start from A at the same time to reach B. After one hour train Y has a breakdown. Engine Z starts with a speed of 90km/h from B just after the breakdown. The engine crosses X in one and half hours after starting from B. Then it reaches Y and pulls it to B.

Rahim plans to drive from city A o station C , at the speed of 70 km/h , to catch a train arriving from there at least 15 min before the arrival of the train. The train leaves B , located 500 km south of A , at 8:00 am and travels @ 50km/h , It is konown that C is located b/w west and north-west of B , with BC at 60(degree) angle to AB . Also , C is located south and south-west of A with AC at 30(degrees) to AB. The latest time Rahim must leave A and still catch the train is closest to

If Ram and Shyam start running from a point on a circular track of length 1750 m in opposite direction. Speed of Ram is 7.5 m/sec and that of Shyam is 10m/s. Whenever they meet they put a flag on the meeting point. If they put 1750 flags on the track then what would be maximum distance between any two flags on the track.

guys plz explanations ..!!!!