JEE Main Permutations and Combinations — practice questions
10 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice JEE Main Permutations and Combinations in the app →The value of $5!$ is:The number of ways to arrange $n$ distinct objects in a row is:$^{n}P_r$, the number of permutations of $n$ distinct objects taken $r$ at a time, equals:$^{n}C_r$, the number of combinations of $n$ distinct objects taken $r$ at a time, equals:How many different 4-digit numbers can be formed using the digits $1, 2, 3, 4, 5$ without repetition?In how many ways can a committee of $3$ persons be chosen from a group of $10$ people?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: