Two horses start trotting towards each other, one from A to B and another from B to A. They cross each other after one hour and the first horse reaches B, 5/6 hour before the second horse reaches A. If the distance between A and B is 50 km. what is the speed of the slower horse? Choose the correct answer:
A) 22 km/h	B) 88 km/h	C) 11 km/h	D) 20 km/h	E) 87 km/h
Explanation:   If the speed of the faster horse be \inline f_{s} and that of slower horse be \inline s_{s} then   \inline f_{s}+s_{s}=\frac{50}{1}=50   and \inline \frac{50}{s_{s}}-\frac{50}{f_{s}}=\frac{5}{6}   Now, you can go through options.   The speed of slower horse is 20km/h   Since, 20+30=50   and \inline \frac{50}{20}-\frac{50}{30}=\frac{5}{6}   Answer: 20 km/h) 20 km/h
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Two horses start trotting towards each other, one from A to B and another from B to A. They cross each other after one hour and the first horse reaches B, 5/6 hour before the second horse reaches A. If the distance between A and B is 50 km. what is the speed of the slower horse?