AIEEE Exam Category

Two cyclists simultaneously start from A to B and B to A respectively. They cross each other after a time t hours. The first person reaches B in another t1 hours while the second person reaches A in another t2 hours. Then
a)t=t1+t2/2 b)t=2t1t2/t1+t2 c)t=sqrt(t1t2) d)t=t2-t1/2

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AIEEE Other Question

Ramu starts from P towards Q at a speed of 30 kmph and after every 12 min increase his speed by 5 kmph. If the distance between P and Q is 52 km, then how much time does he take to cover the distance?
a)60 min b)72 min c)90 min d)120 min
A car travels a total distance of 150 km. After travelling a part of the distance without any trouble ,the car develops an engine problem and proceeds at 2/3rd of its former speed and arrives at the destination 48 mins late. Had the problem developed 24 km further on, the car would have arrived 12 min sooner. Find the original distance it travelled without any problem and the speed over that part of the journey.
a)100km,60 kmph b)48km,36kmph c)72km,50kmph d)54km,60 kmph