instruction:
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: a bag contains 10 red jellybeans and 10 blue jellybeans. if 3 jellybeans are removed one at a time, at random and are not replaced, what is the probability e that all 3 jellybeans removed from the bag are blue ?
Options: a. 9 / 100, b. 2 / 19, c. 1 / 8, d. 3 / 20, e. 3 / 10
answer:
b

question:
Problem: excluding the stoppages, the speed of a bus is 48 km / hr and including the stoppages the speed of the bus is 12 km / hr. for how many minutes does the bus stop per hour ?
Options: a. 45 min, b. 10 min, c. 12 min, d. 20 min, e. 18 min
answer:
a

question:
Problem: the price of maruti car rises by 30 percent while the sales of the car come down by 20 %. what is the percentage change in the total revenue ?
Options: a. - 4 %, b. - 2 %, c. + 4 %, d. + 2 %, e. none of these
answer:
c