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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 (0,2,4,6,8,9) without repetition, a four-digit number must be greater than (2000) and end in (9). How many numbers are possible?Class 11Permutations and CombinationsFundamental principle of countingHard MathematicsA secure code has (6) binary positions. No three consecutive positions can be (1). How many codes are possible?Class 11Permutations and CombinationsFundamental principle of countingHard MathematicsAn app ID has (2) letters followed by (3) digits. Letters and digits may repeat, but the last digit must be even and the two letters must not be identical. How many IDs are possible?Class 11Permutations and CombinationsFundamental principle of countingHard MathematicsUsing digits (1,2,3,4,5,6,7,8,9) without repetition, how many five-digit numbers contain exactly two even digits?Class 11Permutations and CombinationsFundamental principle of countingHard MathematicsA signal uses (3) flags arranged vertically. They are chosen from (6) distinct flags, and if the blue flag is chosen it cannot be at the top. How many signals can be formed?Class 11Permutations and CombinationsFundamental principle of countingHard MathematicsAn online form has (5) optional sections. Each section may be filled or left blank, but at least one must be filled. If sections (1) and (2) cannot both be filled, how many ways are possible?Class 11Permutations and CombinationsFundamental principle of countingHard MathematicsUsing digits (0,1,2,3,4,5,6,7) without repetition, how many five-digit numbers divisible by (4) can be formed?Class 11Permutations and CombinationsFundamental principle of countingHard MathematicsA locker code has four digits. The first digit cannot be (0), and exactly two digits must be identical while the other two digits are distinct and different from the repeated digit. How many codes are possible?Class 11Permutations and CombinationsFundamental principle of countingHard MathematicsA badge is made by choosing a color, then a shape, then a symbol. There are (7) colors, (4) shapes, and (6) symbols. If red cannot be paired with the circle shape, how many badges are possible?Class 11Permutations and CombinationsFundamental principle of countingHard MathematicsA menu has (6) starters, (5) main dishes, and (4) desserts. A customer chooses exactly one item from at least two categories. How many selections are possible?Class 11Permutations and CombinationsFundamental principle of countingHard MathematicsAn exam code has (3) letters followed by (2) digits. Letters may repeat but digits cannot repeat. If the code must contain at least one vowel among the letters, how many codes are possible?Class 11Permutations and CombinationsFundamental principle of countingHard MathematicsUsing digits (1,2,3,4,5,6,7,8) without repetition, a four-digit number must be greater than (3000) and odd. How many numbers can be formed?Class 11Permutations and CombinationsFundamental principle of countingHard MathematicsA password has two distinct uppercase letters followed by three distinct digits. If digit (0) cannot be in the first digit-position, how many passwords are possible?Class 11Permutations and CombinationsFundamental principle of countingHard MathematicsSolve the inequality (2.2x-1.1\ge 4.4-0.5x).Class 11Linear InequalitiesAlgebraic Solution of Linear Inequalities in One VariableHard MathematicsWhat is the solution of (\frac{x-8}{5}+\frac{2x+1}{10}<3)?Class 11Linear InequalitiesAlgebraic Solution of Linear Inequalities in One VariableHard MathematicsSolve the inequality (\frac{3x-2}{7}+\frac{x+1}{14}>2).Class 11Linear InequalitiesAlgebraic Solution of Linear Inequalities in One VariableHard MathematicsSolve the compound inequality (-2\le \frac{3x+1}{5}<4).Class 11Linear InequalitiesAlgebraic Solution of Linear Inequalities in One VariableHard MathematicsSolve the inequality (\frac{4x-7}{5}>\frac{x+2}{10}).Class 11Linear InequalitiesAlgebraic Solution of Linear Inequalities in One VariableHard MathematicsChoose the solution set of (\frac{2x-1}{3}+\frac{x+5}{6}\ge 2).Class 11Linear InequalitiesAlgebraic Solution of Linear Inequalities in One VariableHard MathematicsWhat is the solution of (12-5x<2)?Class 11Linear InequalitiesAlgebraic Solution of Linear Inequalities in One VariableHard