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: if the sides of a triangle are 26 cm, 24 cm and 15 cm, what is its area ?
Options: a. 120, b. 772, c. 180, d. 266, e. 2848

Answer: c


Question: Problem: if two dice are thrown together, the probability of getting an even prime number on the dice is
Options: a. 1 / 36, b. 1 / 18, c. 1 / 13, d. 1 / 9, e. 5 / 36

Answer: a


Question: Problem: a girl multiplies 987 by a certain number and obtains 559981 as her answer. if in the answer, both 9 ’ s are wrong but the other digits are correct, then the correct answer will be
Options: a. 553681, b. 555181, c. 555681, d. 556581, e. none of these

Answer:
c