permutation and combination question bank cet
See sharing some links from other parties isn't allowed on our platform so I won't be able to. So you please can google this and can get tons of things available for the same chapter. As far as what I can do for you is I can guide you a bit with that chapter.. I personally suggest you to complete the full chapter from GOVERNMENT SANCTIONED TEXTBOOK and complete all the sums-solved examples and exercise and then go for some books or question set.
As of now solve this 5 questions to increase your confidence...
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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 |
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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 |
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3.If a polygon has 44 diagonals ,then the number of its sides are |
| 11 |
| 7 |
| 8 |
| None of these |
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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 |
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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 |
