Answer & Solution
Answer: Option B
Solution:
A : B = 1000 : 900 and
B : C = 1000 : 850
$$\eqalign{
& \therefore \frac{A}{C} = \frac{A}{B} \times \frac{B}{C} \cr
& \,\,\,\,\,\,\,\, = \frac{{1000}}{{900}} \times \frac{{1000}}{{850}} \cr
& \,\,\,\,\,\,\,\, = \frac{{1000}}{{765}} \cr} $$
A : C = 1000 : 765
∴ A beats C by (1000 - 765) m = 235 m