Given a math problem with context and a question and 5 answer choices, the task is to provide the correct answer choice based on the problem. You must choose one of the given answer choices by letter: a, b, c, d, or e; anything else is invalid.
--------
Question: Problem: the cost price of a radio is rs. 1800 and it was sold for rs. 1430, find the loss % ?
Options: a. 18 %, b. 20.5 %, c. 30 %, d. 45 %, e. 12 %

Answer: b


Question: Problem: two trains of equal length are running on parallel lines in the same directions at 46 km / hr. and 36 km / hr. the faster trains pass the slower train in 72 seconds. the length of each train is :
Options: a. 82 m, b. 50 m, c. 72 m, d. 100 m, e. none of these

Answer: d


Question: Problem: in the standard formulation of a flavored drink the ratio by volume of flavoring to corn syrup to water is 1: 12: 30. in the sport formulation, the ratio of flavoring to corn syrup is three times as great as in the standard formulation, and the ratio of flavoring to water is half that of the standard formulation. if a large bottle of the sport formulation contains 8 ounces of corn syrup, how many ounces of water does it contain ?
Options: a. 45, b. 50, c. 55, d. 60, e. 120

Answer:
e