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Homework Statement
A candidate sitting this paper is told to answer 5 of the 7 questions in section A, and 3 questions from the 5 options in section B, where not more than 2 questions from the same option can be chosen. Assuming that he answers 8 questions altogether, find how many different combinations of questions he could attempt.
Homework Equations
nPr , nCr
The Attempt at a Solution
To speak the truth, i can't solve this questions
even my teacher also don't know how to solve it =.=
but i got the answer, the answer is 9450,
just want to get the approach only...