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10. In how many of the distinct permutations of the letters in MISSISSIPPI do the four I’s not
11.In how many ways can the letters of the word PERMUTATIONS be arranged if the
2. Determine n if (a) 2nC3 : nC3 = 12 : 1 (b) 2nC3 : nC3 = 11 : 1
9. It is required to seat 5 men and 4 women in row so that the women occupy the even
11. In how many ways can the letters of the word ASSASSINATION be arranged so that all
10. From a class of 25 students, 10 are to be chosen for an excursion party. There are 3 students
6. Determine the number of 5 card combinations out of a deck of 52 cards if there is exactly
8. Determine the number of 5-card combinations out of a deck of 52 cards if each selection
9. In how many ways can a student choose a programme of 5 courses if 9 courses are
7. In how many ways can one select a cricket team of eleven from 17 players in which
2. How many words, with or without meaning, can be formed using all the letters of the word
3. A committee of 7 has to be formed form 9 boys and 4 girls. In how many ways can this be
9. How many words, with or without meaning can be made from the letters of the word
5. Find the number of ways of selecting 9 balls from 6 red balls, 5 white balls and 5 blue
2. How many 4-digit numbers are there with no digit repeated?
1. How many words, with or without meaning, each of 2 vowels and 3 consonants
4. How many 5-digit telephone numbers can be constructed using the digits 0 to 9 if each number
6. Given 5 flags of different colours, how many different signals can be generated if each signal
3.How many 4-letter code can be formed using the first 10 letters of the English alphabet, if no
5. A coin is tossed 3 times and the outcomes are recorded. How many possible outcomes are there?
10. (-2-1/3 i)^3
14. Express the following expression in the form of a + ib.((3+i√5)(3-i√5))/((√3+√2i)-(√3-i√2) )
3. i-39
