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: 12. what is the dividend. divisor 17, the quotient is 9 and the remainder is 10.
Options: a. 150, b. 152, c. 154, d. 163, e. 144
answer:
d

question:
Problem: a bag contains 21 toys numbered 1 to 21. a toy is drawn and then another toy is drawn without replacement. find the probability that both toys will show even numbers.
Options: a. 5 / 21, b. 9 / 42, c. 6 / 22, d. 4 / 21, e. 3 / 21
answer:
b

question:
Problem: in what time will a train 100 meters long cross an electric pole, if its speed is 72 km / hr
Options: a. 5 seconds, b. 2.8 seconds, c. 3.5 seconds, d. 2.5 seconds, e. 2.6 seconds
answer:
a