CBSE Class 11 Permutations and Combinations — practice questions
28 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 Permutations and Combinations in the app →The general solution of $\cos x = 1/2$ is:The number of ways to arrange the letters of the word DELHI is:The number of distinct arrangements of letters in the word MISSISSIPPI (4 S, 4 I, 2 P, 1 M) is:The number of ways to choose $3$ players from a class of $10$ for a team (order does not matter) is:Using Pascal's identity, $^7C_3 + ^7C_2$ equals:The angle 90° in radians is:The exact value of cos 60° is:The double angle formula sin 2A equals:One event can occur in m ways, and a second event can then occur in n ways. By the fundamental principle of coWhich statement correctly defines a permutation?In a combination of objects, which feature is not important?The symbol n factorial denotes the product of the first n numbers of which kind?What value is assigned to zero factorial?What is the value of five factorial?What is the value of seven factorial?What is the value of seven factorial minus five factorial?The number of permutations of n different objects taken r at a time, when repetition is allowed, is given by wHow many four letter words, with or without meaning, can be formed from the letters of ROSE if no letter is reHow many four letter words can be formed from the letters of ROSE if the letters may be repeated?Signals are made by arranging 2 flags one above the other from 4 flags of different colours. How many signals How many two digit even numbers can be formed from the digits 1, 2, 3, 4 and 5 if the digits may be repeated?The number of permutations of n objects, where p of them are of the same kind and the rest are all different, Which relation connects the number of permutations and the number of combinations of n things taken r at a timTwelve persons meet in a room and each shakes hands with all the others. The number of handshakes equals whichSeven points lie on a circle. How many chords can be drawn by joining these points pairwise?Taking 2 at a time from 4 different objects, how many combinations are there?In how many ways can a committee of 3 persons be formed from 5 persons?Which Indian tradition treated permutations and combinations as a self-contained subject under the name Vikalp