x can give y 100 meters start and z 200 meters start in x kilometer race . how much start can y give z in x kilometer race ?
c 111.12 m x runs 1000 m while y runs 900 m and z runs 800 m . the number of meters that z runs when y runs 1000 m , = ( 1000 * 800 ) / 900 = 8000 / 9 = 888.88 m . y can give z = 1000 - 888.88 = 111.12 m .
divide(multiply(const_1000, subtract(200, 100)), subtract(const_1000, 100))