The task is to generate the correct answer for a given math problem.
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Question: Problem: of the seven - digit positive integers that have no digits equal to zero , how many have two digits that are equal to each other and the remaining digit different from the other two ?

Answer: 152409600


Question: Problem: if 2 men or 3 women can reap a field in 10 days how long will 4 men and 5 women take to reap it ?

Answer: 11 / 30


Question: Problem: find out the c . i on rs . 5000 at 4 % p . a . compound half - yearly for 1 1 / 2 years ?

Answer:
306.04