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.

Q: Problem: a thief is spotted by a policeman from a distance of 150 meters. when the policeman starts the chase, the thief also starts running. if the speed of the thief be 8 km / hr and that of the policeman 10 km / hr, how far the thief will have run before he is overtaken ?
Options: a. 350 m, b. 200 m, c. 400 m, d. 600 m, e. none of them

A: d
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Q: Problem: when a certain number x is divided by 61, the remainder is 24. what is the remainder when x is divided by 5 ?
Options: a. 2, b. 3, c. 4, d. 5, e. 6

A: c
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Q: Problem: a pump will fill a tank in 3 hours. because of a leak in the tank, it took 3 hours 30 min to fill the tank. in what time the leak can drain out all the water of the tank and will make tank empty ?
Options: a. 20 hrs, b. 21 hrs, c. 22 hrs, d. 23 hrs, e. 24 hrs

A:
b
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