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: find the area of a parallelogram with base 10 cm and height 20 cm.
Options: a. 200, b. 384, c. 200, d. 244, e. 242
answer:
c


question:
Problem: together, 15 type a machines and 7 type b machines can complete a certain job in 4 hours. together 8 type b machines and 15 type c machines can complete the same job in 11 hours. how many q hours would it take one type a machine, one type b machine, and one type c machine working together to complete the job ( assuming constant rates for each machine. ?
Options: a. 22 hours, b. 30 hours, c. 44 hours, d. 60 hours, e. it can not be determined from the information above.
answer:
c


question:
Problem: tough and tricky questions: word problems. micheal, saren and donald decided to club together to buy a present. each of them gave equal amount of money. luckily saren negotiated a 20 % discount for the present so that each of them paid 4 dollars less. how much did they pay for a present ?
Options: a. 20, b. 36, c. 48, d. 60, e. 72
answer:

c