Question 11 : In how many ways 2 students can be chosen from the class of 20 students?
1. 190
2. 180
3. 240
4. 390
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Question 12 : A two member committee comprising of one male and one female member is to be constitute out of five males and three females. Amongst the females. Ms. A refuses to be a member of the committee in which Mr. B is taken as the member. In how many different ways can the committee be constituted ?
1. 11
2. 12
3. 13
4. 14
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Question 13 : In how many ways 4 boys and 3 girls can be seated in a row so that they are alternate.
1. 144
2. 288
3. 12
4. 256
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Question 14 : In how many ways can 10 examination papers be arranged so that the best and the worst papers never come together?
1. 8*9!
2. 8*8!
3. 7*9!
4. 9*8!
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Question 15 : How many Permutations of the letters of the word APPLE are there?
1. 600
2. 120
3. 240
4. 60
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