The task is to generate the correct answer for a given math problem.
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Question: Problem: the probability is 1 / 2 that a certain coin turns up heads on any given toss . if the coin is tossed 6 times , what is the probability that the coin turns up tails on at least one of the tosses ?

Answer: 63 / 64


Question: Problem: a sum of money at simple interest amounts to rs . 815 in 3 years and to rs . 878 in 4 years . the sum is :

Answer: 626


Question: Problem: what is the sum of the greatest common factor and the lowest common multiple of 48 and 72

Answer:
168