A can give B 100 meters start and C 170 meters start in a kilometer race. How much start can B give C in a kilometer race?
Answers.
A) 11.77 meters	B) 55.77 meters	C) 77.77 meters	D) 113.77 meters	E) None of these
Explanation:   A runs 1000 meters while B runs 900 meters and C runs 830 meters.   Therefore, B runs 900 meters while C runs 830 meters.   So, the number of meters that 77.77 meters runs when B runs 1000 meters = (1000 x 830)/900 = 922.22 meters   Thus, B can give 77.77 meters (1000 - 922.22) = 77.77 meters start   Answer: 77.77 meters
<result>C</result>
A can give B 100 meters start and C 170 meters start in a kilometer race. How much start can B give C in a kilometer race?