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: you have been given a physical balance and 7 weights of 40, 42, 36, 33, 47, 52 and 67 kgs. keeping weights on one pan and object on the other, what is the maximum you can weigh less than 169 kgs.
Options: a. 163, b. 166, c. 162, d. 164, e. 165
answer:
e


question:
Problem: if a man lost 10 % by selling oranges at the rate of 12 a rupee at how many a rupee must he sell them to gain 44 % ?
Options: a. 6.5, b. 7.5, c. 7, d. 8, e. 2
answer:
b


question:
Problem: john and david work at a hospital with 8 other workers. for an internal review, 2 of the 8 workers will be randomly chosen to be interviewed. what is the probability that john and david will both be chosen ?
Options: a. 1 / 30, b. 1 / 25, c. 1 / 20, d. 1 / 28, e. 1 / 30
answer:

d