IIT JEE : Permutations Combinations QUESTIONS AND ANSWERS :: part1 : 1 to 5
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
1.In a 12-storey house ten people enter a lift cabin.It is known that they will leave the lift in groups of2,3 and 5 people at different storeys.The number of ways they can do so if the lift does not stop up to the second storey is |
| 78 |
| 112 |
| 720 |
| 132 |
2.A committee of 5 is to be formed from 9 Ladies and 8 men. If the committee commands a lady majority, then the number of ways this can be done is |
| 2352 |
| 1008 |
| 3360 |
| 3486 |
3.If a polygon has 44 diagonals ,then the number of its sides are |
| 11 |
| 7 |
| 8 |
| None of these |
4.A set contains (2n+1) elements. If the number of subsets of this set which contain almost n elements is 4096,then the value of n is |
| 6 |
| 15 |
| 21 |
| None of these |
5.Ten different letters of an alphabet are given. Words with 5 letters are formed from these given letters. Then the number of words which have at least one letters repeated is |
| 69760 |
| 30240 |
| 99748 |
| None of these |
More Permutations Combinations QUESTIONS AND ANSWERS available in next pages
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