Maths-
General
Easy
Question
The total number of ways in which n2 number of identical balls cane be put in n numbered boxed (1, 2, 3, ……n) such that ith box contains at least i number of balls, is -
- None of these
The correct answer is:
If we put minimum number of balls required in each box. Balls left are 
which can be put in ways without restriction.
Related Questions to study
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A person writes letters to 6 friends and addresses the corresponding envelopes. In how many ways can the letters be placed in the envelopes so that at least 4 of them are in wrong envelopes ?
A person writes letters to 6 friends and addresses the corresponding envelopes. In how many ways can the letters be placed in the envelopes so that at least 4 of them are in wrong envelopes ?
Maths-General
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Sum of all divisors of 5400 whose unit digit is 0, is -
Sum of all divisors of 5400 whose unit digit is 0, is -
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The sum of the factors of 8! which are odd and are of the form (3m + 2) where m N is -
The sum of the factors of 8! which are odd and are of the form (3m + 2) where m N is -
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General
In spermatogenesis, reduction division of chromosomes occurs during conversion of
In spermatogenesis, reduction division of chromosomes occurs during conversion of
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General
Number of autosomes in human primary spermatocyte is
Number of autosomes in human primary spermatocyte is
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General
Spermatogenesis starts at the age of puberty due to significant increase in the secretion of
Spermatogenesis starts at the age of puberty due to significant increase in the secretion of
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Biology
Evolution that shift the allele frequency in a study consistent direction is called?
Evolution that shift the allele frequency in a study consistent direction is called?
BiologyGeneral
Biology
Vestigial organs present in an adult individual are examples of …………. Basis of evidence of evolution.
Vestigial organs present in an adult individual are examples of …………. Basis of evidence of evolution.
BiologyGeneral
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Wings of birds and wings of flies perform similar functions so they are examples of
Wings of birds and wings of flies perform similar functions so they are examples of
BiologyGeneral
Biology
In the given picture of human evolution, identify the missing stages, 
and 
In the given picture of human evolution, identify the missing stages, and
BiologyGeneral
BiologyGeneral
Biology
What is the use of Electronic Spin Resonance (ESR) in fossil studies?
What is the use of Electronic Spin Resonance (ESR) in fossil studies?
BiologyGeneral
Biology
According to Oparin, which one of the following was not present in the primitive atmosphere of the earth?
According to Oparin, which one of the following was not present in the primitive atmosphere of the earth?
BiologyGeneral
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Single step large mutation leading to speciation is also called
Single step large mutation leading to speciation is also called
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Biology
The brain capacity of 
was about
The brain capacity of was about
BiologyGeneral
Biology
Which of the following statements stands in favour of abiogenesis?
I. Spontaneous generation
II. Origin of viruses and microbes
III. Origin of life from living organism
IV. Origin of life from non-living organism
The correct combination is
Which of the following statements stands in favour of abiogenesis?
I. Spontaneous generation
II. Origin of viruses and microbes
III. Origin of life from living organism
IV. Origin of life from non-living organism
The correct combination is
BiologyGeneral
