SOLUTION: These are 11 question in examination paper of maths A candidate has to answer 6 question of under which 1 is compulsory the total no. Of selection of his answering in question is__

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Question 1093628: These are 11 question in examination paper of maths A candidate has to answer 6 question of under which 1 is compulsory the total no. Of selection of his answering in question is____
Answer by greenestamps(13198) About Me  (Show Source):
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He is required to answer one of the questions. That leaves 10 others, from which he must choose 5. So "10 choose 5":