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Which of the following is a feature of public sector enterprises?

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Important Questions on Permutation and Combination

EASY
Mathematics>Algebra>Permutation and Combination>Permutations
There are m men and two women participating in a chess tournament. Each participant plays two games with every other participant. If the number of games played by the men between themselves exceeds the number of games played between the men and the women by 84, then the value of m is :
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Mathematics>Algebra>Permutation and Combination>Permutations
Consider a class of 5 girls and 7 boys. The number of different teams consisting of 2 girls and 3 boys that can be formed from this class, if there are two specific boys A and B, who refuse to be the members of the same team, is:
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Mathematics>Algebra>Permutation and Combination>Permutations
The number of natural numbers less than 7000 which can be formed by using the digits 0, 1, 3, 7, 9 (repetition of digits allowed) is equal to:
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Mathematics>Algebra>Permutation and Combination>Permutations
The Number of ways of choosing 10 objects out of 31 objects of which 10 are identical and the remaining 21 are distinct, is:
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Mathematics>Algebra>Permutation and Combination>Permutations
A committee of 11 member is to be formed from 8 males and 5 females. If m is the number of ways the committee is formed with at least 6 males and n is the number of ways the committee is formed with at least 3 females, then
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Mathematics>Algebra>Permutation and Combination>Permutations
Suppose that 20 pillars of the same height have been erected along the boundary of circular stadium. If the top of each pillar has been connected by beams with the top of all its non-adjacent pillars, then the total number of beams is:
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Mathematics>Algebra>Permutation and Combination>Permutations
The value of ∑r=110r·CrnCr-1n is equal to
HARD
Mathematics>Algebra>Permutation and Combination>Permutations
If in a regular polygon the number of diagonals is 54, then the number of sides of this polygon is:
HARD
Mathematics>Algebra>Permutation and Combination>Permutations
If ∑i=120 20Ci-1 20Ci+20Ci-13=k21, then k equals
EASY
Mathematics>Algebra>Permutation and Combination>Permutations
Define plasticity.
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Mathematics>Algebra>Permutation and Combination>Permutations

A rubber band stretches and reverts to its original position. Bubble gum stretches, but it would not return to its original position.

Is there any difference between the two processes? Discuss it with respect to plant growth. [Hint: Elasticity (reversible) Plasticity (irreversible)]

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Mathematics>Algebra>Permutation and Combination>Permutations
Define growth, differentiation, development, dedifferentiation, redifferentiation, determinate growth, meristem and growth rate.
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Mathematics>Algebra>Permutation and Combination>Permutations
Plasticity in plant growth means that
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Mathematics>Algebra>Permutation and Combination>Permutations
Plasticity in plant growth means that:
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Mathematics>Algebra>Permutation and Combination>Permutations
Define plasticity. Give an example.
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Mathematics>Algebra>Permutation and Combination>Permutations
What is sigmoid curve?
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Mathematics>Algebra>Permutation and Combination>Permutations
'Both growth and differentiation in higher plants are open'. Comment.
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Mathematics>Algebra>Permutation and Combination>Permutations
The sequence of steps in the history of an organism is called
EASY
Mathematics>Algebra>Permutation and Combination>Permutations
Define development
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Mathematics>Algebra>Permutation and Combination>Permutations
Mention what do you understand by the term plasticity in plants. Is it followed by every plant? What is the function of heteroblastic development in plants?