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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।

MathematicsUsing digits (1,2,3,4,5,6), how many (4)-digit numbers can be formed without repetition and greater than (3000)?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard MathematicsAmong (10) points, no (3) are collinear. How many triangles can be formed if (2) particular points must not appear together in any triangle?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard MathematicsA code has (3) letters and (2) digits. The (5) positions may contain letters and digits in any order. Using (5) letters and (4) digits without repetition, how many codes are possible?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard Mathematics(6) distinct letters are to be placed into (6) distinct envelopes. Exactly (1) letter must go into its correct envelope. How many ways are possible?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard MathematicsA plate has (7) types of sweets. (5) sweets are to be selected with at least (2) special sweets included. If there are (3) special sweets, in how many ways can this be done?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard MathematicsA (5)-digit code is formed from (0,1,2,3,4,5) without repetition, and the first digit cannot be (0). If both (1) and (2) must appear in the code, how many codes are possible?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard MathematicsFrom (8) players, a team of (4) including a captain is to be formed. One particular player must be in the team but must not be the captain. How many ways are possible?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard MathematicsHow many distinct arrangements can be made using all letters of the word (SCHOOL)?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard MathematicsFrom (6) boys and (5) girls, a team of (5) members is to be formed in which the number of girls is more than the number of boys. How many teams are possible?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard MathematicsA lock has (4) positions. Each position can have any digit from (0) to (9), but exactly (2) positions must contain the digit (7). How many lock codes are possible?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard MathematicsA student chooses (4) practice days from (10) days. No two selected days should be consecutive. In how many ways can this be done?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard MathematicsUsing digits (0,2,4,6,8,9), how many (4)-digit odd numbers can be formed without repetition?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard MathematicsHow many arrangements of the letters of the word (NUMBER) are possible if (N) and (R) occupy the two ends?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard MathematicsA code has (2) capital letters and (2) digits. Letters are chosen from (A,B,C,D), and digits from (0,1,2,3,4). Letters do not repeat but digits may repeat. How many codes are possible?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard MathematicsA menu has (5) starters, (6) main dishes, and (4) desserts. A meal has one item from each type, and the main dish must not be any one of (2) special items. How many meals are possible?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard MathematicsA bag has 6 red and 5 blue balls. Four balls are to be selected with equal numbers of both colours. How many selections are possible?Class 11Permutations and CombinationsCombinationsLevel 54Medium MathematicsFrom (7) students, a president, secretary, and treasurer are to be chosen. No student can hold more than one post. In how many ways can this be done?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard MathematicsHow many (4)-digit numbers can be formed from digits (1,2,3,4,5,6,7) without repetition such that (4) always appears to the left of (2)?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard MathematicsA signal is made by placing (3) flags one above another. The flags are chosen from (7) distinct flags without repetition. How many signals are possible?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard MathematicsThere are (4) routes from (P) to (Q) and (5) routes from (Q) to (R). A person goes from (P) to (R) and returns to (P), but must not use the same (P) to (Q) route and the same (Q) to (R) route on return. How many ways are possible?Class 11Permutations and CombinationsFundamental principle of countingLevel 54Hard