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Ques:- A man jogs at 6 mph over a certain journey and walks over the same route at 4 mph. What is his average speed for the journey?
A. 2.4 mph
B. 4 mph
C. 4.8 mph
D. 5 mph
E. None of above
Ques:- Arun, Kamal and Vinay invested Rs.8000, Rs.4000 and Rs.8000 respectively in a business. Arun left after six months. If after eight months, there was a gain of Rs.4005, then what will be the share of Kamal?
A. Rs. 1780
B. Rs. 1602
C. Rs. 1335
D. Rs. 890
Ques:- Two trains 240 metres and 270 metres in length are running towards each other on parallel lines, one at the rate of 60 kmph and another at 48 kmph. How much time will they take to cross each other?
A. 14 sec.
B. 15 sec.
C. 16 sec.
D. 17 sec.