Recent questions tagged q2

Find out the difference between greatest 7 digit number and greatest 6 digit number

asked Oct 19, 2017 by priyanka.c

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A hollow sphere of radius 1m is given a positive charge of $10 \mu C$. The electric field at the centre of hollow sphere will be :

asked Oct 8, 2017 by priyanka.c

1 answer

A gas mixture consists of 2 moles of O, and 4 moles of Ar at temperature T. Neglecting all vibrational modes, the totalintemal energv of l.he system is :

asked Oct 7, 2017 by meena.p

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Mahesh school was 450 m from his home. He goes by cycle at the speed of 10 km/hr. He stopped at a stationary shop for 15 minutes. What is the total time travelled?

asked Oct 2, 2017 by priyanka.c

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Sheela started to school at half past 8. Her school was 7 and half hours including breaks. Her travel time from school to home is 20 minutes. If she reached home at evening 4:50 pm what time did she start from school?

asked Sep 25, 2017 by priyanka.c

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The same number is repeated four times. In which of the following do you find the mistake?

asked Sep 20, 2017 by priyanka.c

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What is the sequence of the following number pattern? <br><br> 2, 2, 4, 12, 48, 240

asked Sep 18, 2017 by priyanka.c

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How many squares are there in the following figure?

asked Sep 3, 2017 by priyanka.c

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Find the value of the following expression $(5678 \times 10) + (378 \times 15) - (\frac{450}{15})(900 \times 2) = $

asked Sep 1, 2017 by priyanka.c

0 answers

Leena buys 100 grams bar chocolates. She buys $\frac{3}{4}^{th}$ of chocolate. How many grams of chocolates are left over?

asked Aug 31, 2017 by priyanka.c

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There are 25 bar chocolates and 15 children. 5 children get 8 chocolates each and 5 of them get 4 each. How is the chocolates shared equally among remaining 5 children.

asked Aug 14, 2017 by priyanka.c

0 answers

asked Aug 11, 2017 by priyanka.c

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There are 40 cows, 10 hens, 12 chickens and 3 cats in a farm. 14 cows went to paddy field for plowing 3 hens and 5 chickens were missing from the farm. What is the total number of animals left in the farm.

asked Aug 4, 2017 by priyanka.c

0 answers

A small candle 2.5 cm in size is placed 27 cm in front of a concave mirror of radius of curvature 36 cm. If the candle is moved closer to the mirror, how would the screen have to be moved ?

asked Feb 10, 2016 by meena.p

1 answer

A circular coil of wire consisting of 100 times of radius $8.0\;cm$ carries a current of $0.40\;A$ What is the direction of the magnetic field B at the center of the coil ?

asked Jul 22, 2015 by meena.p

1 answer

The angle of dip at a location in southern India is about $18^{circ}$ would you expect a greater or smaller dip in Britain ?

asked Jul 9, 2015 by meena.p

1 answer

A low voltage supply from which one needs high currents must have very low internal resistance why ?

asked Jun 29, 2015 by meena.p

1 answer

The force acting between two print charges $q_1$ and $q_2$ kept at some distance apart in air is attractive or repulsive when (i) q_1q_2 > 0 (ii) q_1 q_2 <0$

asked Apr 21, 2015 by meena.p

1 answer

Show that the point $(x,y)$ given by $x=\large\frac{2at}{1+t^2}$ and $y=\large\frac{a(1-t^2)}{1+t^2}$ lies on a circle for all real values of $t$ such that $-1\leq t \leq 1$ where $a$ is any given real numbers.

asked Oct 17, 2014 by sreemathi.v

1 answer

Solve the inequality $ 6 \leq -3( 2x-4) < 12$

asked Aug 1, 2014 by meena.p

1 answer

Calculate the angle at which second-order reflection will occur in an X-ray spectrometer when X-rays of 0.154nm are diffracted by the atoms of a crystal having distance b/w two planes at 404 pm

asked Jul 31, 2014 by sreemathi.v

1 answer

Solve the system of inequalities graphically $3x +2y \leq 12 ; x \geq 1;y \geq 2$

asked Jul 30, 2014 by meena.p

1 answer

Solve the given inequality graphically in two- dimension. $2x +y \geq 6$

asked Jul 28, 2014 by meena.p

1 answer

Show that the statement "For any real numbers $a$ and $b$, $a^2=b^2$ implies that $a=b$" is not true by giving counter example.

asked Jul 26, 2014 by rvidyagovindarajan_1

1 answer

Solve $-12 x > 30$ when (i) x is a natural number (ii) x is an integer

asked Jul 25, 2014 by meena.p

1 answer

The number of elements in Group 13 is

asked Jul 24, 2014 by thanvigandhi_1

1 answer

An arch is in the form of a parabola with its axis vertical. The arch is 10 m high and 5 m wide at the base. How wide is it 2 m from the vertex of the parabola?

asked Jul 23, 2014 by thanvigandhi_1

1 answer

Find the coordinates of the foci and the vertices, the eccentricity and the length of the latus rectum of the hyperbolas : $ \large\frac{y^2}{9}-\large\frac{x^2}{27}=1$

asked Jul 19, 2014 by thanvigandhi_1

1 answer

Identify the quantifier and write the negation of the statement "There exists a number which is equal to its square."

asked Jul 16, 2014 by rvidyagovindarajan_1

1 answer

Find the coordinates of the foci, the vertices, the length of major axis, the minor axis, the eccentricity and the length of the latus rectum of the ellipse : $\large\frac{x^2}{4}$$+\large\frac{y^2}{25}$$=1$

asked Jul 15, 2014 by thanvigandhi_1

1 answer

Find the coordinates of the focus, axis of the parabola, the equation of the directrix and the length of the latus rectum for the following : $ x^2=6y$

asked Jul 14, 2014 by thanvigandhi_1

1 answer

Find the equation of the circle with centre (–2,3) and radius 4

asked Jul 11, 2014 by thanvigandhi_1

1 answer

Six new employees,two of whom are married to each other,are to be assigned six desks that are lined up in a row.If the assignment of employees to desks is made randomly,what is the probability that the married couple will have non adjacent desks?

asked Jul 7, 2014 by sreemathi.v

1 answer

Give three examples of sentences which are not statements. Give reason.

asked Jul 4, 2014 by rvidyagovindarajan_1

1 answer

Find the mean deviation about the mean of the distribution

asked Jul 2, 2014 by meena.p

1 answer

4 cards are drawn from a well shuffled deck of 52 cards.What is the probability of obtaining 3 diamonds and one spade?

asked Jul 2, 2014 by sreemathi.v

1 answer

The mean and variance of $7$ observation are $8$ and $16$ respectively.If six of the observations are $2,4,10,12,14$. Find the remaining two observations.

asked Jul 1, 2014 by meena.p

1 answer

From the prices of shares A and Y below. Find out which is more stable in value.

asked Jun 30, 2014 by meena.p

1 answer

Find the equation of the line passing through the point (5, 2) and perpendicular to the line joining the points (2, 3) and (3, – 1)

asked Jun 30, 2014 by thanvigandhi_1

1 answer

A coin is tossed twice,what is the probability that atleast one tail occurs

asked Jun 30, 2014 by sreemathi.v

1 answer

$A=\{1,2,3,4,5\},B=\phi,C=\{3,6\},D=\{1,2,3\},E=\{6\},F=\{3,4,5,6\}$.Find $A \cup B,A\cap B,B \cup C,E \cap F,D\cap E,A-C,D-E,E \cap F',F'$

asked Jun 27, 2014 by sreemathi.v

1 answer

First n natural numbers:

asked Jun 26, 2014 by meena.p

1 answer

Describe the sample space for the indicated experiment : A die is thrown two times

asked Jun 26, 2014 by sreemathi.v

1 answer

The coefficient of $x^7$ in the expansion of $(\large\frac{x^2}{2}-\frac{2}{x})^9$ is

asked Jun 25, 2014 by sreemathi.v

1 answer

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