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Class 11 Mathematics के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

MathematicsFrom the numbers (1) to (15), (4) numbers are chosen so that their product is odd. How many selections are possible?Class 11Permutations and CombinationsCombinationsExpertMathematicsA set of (12) elements has (4) special elements. How many (5)-element subsets contain at least (2) special elements?Class 11Permutations and CombinationsCombinationsExpertMathematicsIn a set of (10) elements, (a) and (b) are special. How many subsets contain (a) but do not contain (b)?Class 11Permutations and CombinationsCombinationsExpertMathematicsA set of (9) elements has (3) special elements. How many (5)-element subsets contain exactly (2) special elements?Class 11Permutations and CombinationsCombinationsExpertMathematicsA set of (9) elements has (3) special elements. How many (5)-element subsets do not contain all three special elements together?Class 11Permutations and CombinationsCombinationsExpertMathematicsHow many nonnegative integer solutions of (x_1+x_2+x_3+x_4=18) satisfy (x_1\le5)?Class 11Permutations and CombinationsCombinationsExpertMathematicsFor (x_1+x_2+x_3+x_4=20), with (x_1\ge5) and (x_2,x_3,x_4\ge1), how many positive integer solutions are there?Class 11Permutations and CombinationsCombinationsExpertMathematicsHow many ways can (12) identical pens be distributed among (3) students so that each gets at least (2) pens?Class 11Permutations and CombinationsCombinationsExpertMathematicsFrom (4) types of fruits, (6) fruits are to be selected, with unlimited quantity of each type. How many selections are possible?Class 11Permutations and CombinationsCombinationsExpertMathematicsAmong (10) persons, (3) are special. A committee of (6) must contain at least (2) special persons. How many selections are possible?Class 11Permutations and CombinationsCombinationsExpertMathematicsFrom (6) couples, (5) persons are chosen with exactly one married couple included. How many selections are possible?Class 11Permutations and CombinationsCombinationsExpertMathematicsFrom (8) couples, (4) persons are chosen, but no married couple should be selected together. How many selections are possible?Class 11Permutations and CombinationsCombinationsExpertMathematicsIf ( \binom{11}{r}=\binom{11}{r-3} ), what is the value of ( r )?Class 11Permutations and CombinationsCombinationsExpertMathematicsFrom (14) objects, (7) are chosen with exactly (3) objects from a fixed group of (5). How many selections are possible?Class 11Permutations and CombinationsCombinationsExpertMathematicsA (5)-card hand is chosen from a deck so that all cards are from the same suit. How many hands are possible?Class 11Permutations and CombinationsCombinationsExpertMathematicsFrom the numbers (1) to (8), (3) numbers are chosen so that their sum is even. How many selections are possible?Class 11Permutations and CombinationsCombinationsExpertMathematicsFrom the numbers (1) to (15), (4) numbers are chosen so that no two are consecutive. How many selections are possible?Class 11Permutations and CombinationsCombinationsExpertMathematicsThere are (4) parallel lines in one family and (5) parallel lines in another family. How many parallelograms are formed?Class 11Permutations and CombinationsCombinationsExpertMathematicsHow many rectangles are there in a grid of (5) rows and (4) columns of small rectangles?Class 11Permutations and CombinationsCombinationsExpertMathematicsFrom (8) boys and (6) girls, (6) members are chosen so that the number of girls is twice the number of boys. How many selections are possible?Class 11Permutations and CombinationsCombinationsExpert

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