A can give B 50 meters start and C 200 meters start in a kilometer race. How much start can B give C in a kilometer race?	Choose the most appropriate option.
A) 157.89 B) 157.13 C) 157.22 D) 111.0 E) 111.12

Rationale: "a runs 1000 m while b runs 950 m and c runs 800 m . the number of meters that c runs when b runs 1000 m , = ( 1000 * 800 ) / 950 = 842.10 m . b can give c = 1000 - 842.10 = 157.89 m . answer : a"
Answer: A