The task is to generate the correct answer for a given math problem.
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Question: Problem: a fair price shopkeeper takes 10 % profit on his goods . he lost 60 % goods during theft . his loss percent is :

Answer: 56 %

Question: Problem: when positive integer n is divided by positive integer p , the quotient is 18 , with a remainder of 7 . when n is divided by ( p + 3 ) , the quotient is 15 and the remainder is 1 . what is the value of n ?

Answer: 20

Question: Problem: if the l . c . m of two numbers is 560 and their product is 42000 , find the h . c . f of the numbers .

Answer:
75