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 batting average of a particular batsman is 60 runs in 46 innings. if the difference in his highest and lowest score is 140 runs and his average excluding these two innings is 58 runs, find his highest score.
Options: a. 179, b. 367, c. 269, d. 177, e. 174

Answer: e


Question: Problem: a solution of 70 litres contains oil and water in the ratio 9: x. if 6 litres of water is added to the solution, the ratio becomes 6: 4, find the value of x ?
Options: a. 6, b. 8.5, c. 9, d. 6.5, e. 5

Answer: e


Question: Problem: right now, the ratio between the ages of sandy and molly is 4: 3. after 6 years, sandy ’ s age will be 66 years. what is molly ' s age right now ?
Options: a. 15 years, b. 35 years, c. 25 years, d. 45 years, e. 55 years

Answer:
d