Recent questions tagged ch7

How many n-digit numbers are there with no digit repeated?

asked May 13, 2014 by sreemathi.v

1 answer

How many 3-digit numbers can be formed by using the digits 1 to 9,if no digit is repeated?

asked May 13, 2014 by sreemathi.v

1 answer

Evaluate $\large\frac{n!}{(n-r)!}$ when n=9,r=5

asked May 13, 2014 by sreemathi.v

1 answer

Evaluate $\large\frac{n!}{(n-r)!}$ when $n=6,r=2$

asked May 13, 2014 by sreemathi.v

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If $\large\frac{1}{6!}+\frac{1}{7!}=\frac{x}{8!}$ find $x$

asked May 13, 2014 by sreemathi.v

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Compute $\large\frac{8!}{6!\times 2!}$

asked May 13, 2014 by sreemathi.v

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Is $3!+4!=7!$

asked May 13, 2014 by sreemathi.v

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Evaluate : $4!-3!$

asked May 13, 2014 by sreemathi.v

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Evaluate :$8!$

asked May 13, 2014 by sreemathi.v

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Given 5 flags of different colours,how many different signals can be generated if each signal requires the use of 2 flags,one below the other?

asked May 13, 2014 by sreemathi.v

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A coin is tossed 3 times and the outcomes are recorded.How many possible outcomes are there?

asked May 13, 2014 by sreemathi.v

1 answer

How many 5-digit telephone numbers can be constructed using the digit 0 to 9 if each number starts with 67 and no digit appear more than once?

asked May 13, 2014 by sreemathi.v

1 answer

How many 4-letter code words are possible using the first 10 letters of the english alphabet,if no letter can be repeated?

asked May 13, 2014 by sreemathi.v

1 answer

How many 3-digit even numbers can be formed from the digits 1,2,3,4,5,6 if the digits can be repeated?

asked May 13, 2014 by sreemathi.v

1 answer

How many 3-digit numbers can be formed from the digits 1,2,3,4 and 5 assuming repetition of digits is not allowed

asked May 13, 2014 by sreemathi.v

1 answer

How many 3-digit numbers can be formed from the digits 1,2,3,4 and 5 assuming repetition of digits is allowed

asked May 13, 2014 by sreemathi.v

1 answer

Assertion: Unit of nervous tissue is neuron.<br> Reason: The nerve tissue is developed from ectoderm.

asked May 7, 2014 by sreemathi.v

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Assertion: Cells organize themselves in the form of tissues.<br> Reason: Sugar recognition sites of neighboring cells bind each other causing to cell adhesion.

asked May 7, 2014 by sreemathi.v

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Assertion: Connective tissue contains a large amount of non living intercellular or extracellular matrix.<br> Reason: Intercellular substance is usually made up of protein fibres.

asked May 7, 2014 by sreemathi.v

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Beside calcium phosphate the bones contain

asked May 7, 2014 by sreemathi.v

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Bone forming cells are

asked May 7, 2014 by sreemathi.v

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The major constituent of vertebrate bone is

asked May 7, 2014 by sreemathi.v

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The strongest cartilage is

asked May 7, 2014 by sreemathi.v

2 answers

Cartilage is produced by

asked May 7, 2014 by sreemathi.v

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The process of formation of blood corpuscles is known as

asked May 7, 2014 by sreemathi.v

1 answer

Skull of frog is

asked May 6, 2014 by sreemathi.v

1 answer

Number of cranial nerves found in frog are

asked May 6, 2014 by sreemathi.v

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Summer sleep of frog is called

asked May 6, 2014 by sreemathi.v

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Head of cockroach according to its position is k/a

asked May 6, 2014 by sreemathi.v

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Tergum is joined on the sides by

asked May 6, 2014 by sreemathi.v

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Mouth part of cockroach are :-

asked May 6, 2014 by sreemathi.v

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When the head of cockroach is cut it doesnot die immediately because :-

asked May 6, 2014 by sreemathi.v

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The skeletal tissue present in the pinna of a mammal is in the nature of

asked May 6, 2014 by sreemathi.v

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Tendon connects

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The white fibrous tissue occurs in

asked May 6, 2014 by sreemathi.v

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Which of these feed upon dead organic matter with its maxillae picking up the food particles and bringing these to mandibles for mastication?

asked May 6, 2014 by sreemathi.v

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Which of the following constitute tongue like structure in cockroach?

asked May 6, 2014 by sreemathi.v

1 answer

Mouth parts of cockroach are

asked May 6, 2014 by sreemathi.v

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Which is incorrect about smooth muscles :-

asked May 5, 2014 by sreemathi.v

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Areolar tissue is an example of :-

asked May 5, 2014 by sreemathi.v

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In pheretima clitellum is primarily concerned with :-

asked May 5, 2014 by sreemathi.v

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Male genital pores in earth's mean are found in

asked May 5, 2014 by sreemathi.v

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Qass of earthworm is

asked May 5, 2014 by sreemathi.v

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Most common species of cockroach is :-

asked May 5, 2014 by sreemathi.v

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Crop present in the GIT of cockroach has the function of :-

asked May 5, 2014 by sreemathi.v

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Which structure is the lower lip of cockroach:-

asked May 5, 2014 by sreemathi.v

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Vocal sacs are found in :-

asked May 5, 2014 by sreemathi.v

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In male frog creter transfer

asked May 5, 2014 by sreemathi.v

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Wings of cockroach arise from

asked Apr 4, 2014 by pady_1

1 answer

Male cockroach can be identified from the female by the presence of

asked Apr 4, 2014 by pady_1

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