Costs 25Rs for each $m^2$ For 1600Rs , area will be $\frac{1600}{25} = 64 \; m^2$ If length is $20...

Let $x$ be son's age now. Then father's age is $8x$. After 5 years, son's age will be $x + 5$ and ...

For k=0. See here for more help :  https://clay6.com/qa/81921/if-the-root-of-equation-ax2-bx-c...

Let $n$ and $m$ be the two numbers. Arithmetic mean = $\frac{n+m}{2} = 127.5$ $n + m = 255$  ...

Cerebrum is a part of forebrain. Cerebellum is a part of hindbrain Cerebrum is associated with...

Greatest 7 digit odd number = 9999999 Smallest 6 digit even number = 100000 9999999 + 100000 - 768...

Largest 6 digit number = 999999 Largest 5 digit number = 99999 999999 - 99999 = 900000

There are 4 elements in a 2*2 matrix. Each element can be filled with 0 or 1. So the number of matri...

Inside the vessel there is presence of anticoagulant which do not let the blood to coagulate. Clott...

Heparin - Anti coagulant that is released into blood vessels

Heparin - Anti coagulant that is released into blood vessels

Area of square = $r^2$ where $r$ is a side of square $r^2 = 72 = 36*2$ $r = \sqrt{36*2}=6\sqrt{2} $

Distance = $\sqrt{ (k_{1} + 1)^2 + (7+k_{2})^2 } = 13$ $(k_{1} + 1)^2 + (7+k_{2})^2 = 13*13 = 169 =...

525 = 5 * 5 * 7 * 3 So we multiply by 7*3 = 21 to make 525 into a perfect square.

https://clay6.com/qa/56794/use-differentials-to-find-the-approximate-value-of-sqrt-?show=56795#a5679...

https://clay6.com/qa/11571/the-roots-of-ax-2-bx-c-0-are-r-and-s-for-the-roots-of-x-2-px-q-0-to-be-r-...

10 blocks in a row of height 5cm and width 50cm. We need 10 such rows ( 10*5 = 50cm ) So 100 block...

So A = B * z   where z is some integer. So B is a FACTOR of A. ( or a DIVISOR )

Largest 6 digit number = 999999 Smallest 7 digit number = 1000000 So 999999 + 1 = 1000000 So we h...

Abscissa is x and ordinate is y. x is negative ( -3 ) and y is positive ( 5 ). So this point lies ...

Floral axis of a flower bears the essential organs of reproduction (androecium and gynoecium) and ac...

Repairing of DNA is done by DNA polymerase 1 and 2 during replication or post replication repair mec...

Retrovirus do not follow central dogma because their genetic material is not DNA.  Instead they...

Let $x$ be number of days absent. $30-x$ is number of days worked. He gets 200rs when he works. He g...

1620=81*4*5. 81 and 4 are squares. So we should Multiply 1620 by 5 to get a square.

All even numbers between 1000 and 9998 ( inclusive ) are divisible by 2. 1000, 1002, 1004, ... , 99...

$\frac{z}{6} - \frac{2z}{5} + \frac{z}{3} = -7$ $\frac{5z-12z+10z}{30} = -7$ $\frac{3z}{30}=-7$ $...

$24 = 2^3 ^ 3$ $15 = 3 * 5$ $36 = 2^2 * 3^2$ Taking each primes highest factors in the 3 numbers ...

https://clay6.com/qa/64660/romila-pooja-and-swati-went-out-for-dinner-in-a-hotel-romila-paid-large-f...

$1 - (\frac{1}{4} + \frac{1}{5}) = 1 - \frac{9}{20} = \frac{11}{20} $ In percentage, this is $\frac...

5 is added to 100 observations each. So 500 ( 5*100 ) is added. Then divided by 100. ie 5. So mean i...

First seven whole numbers are 0,1,2,3,4,5,6. Mean = $\frac{0+1+2+3+4+5+6}{7} = \frac{21}{7} = 3$

Let $x$ be the number. Its successor is $x+1$. So $x+x+1 = 47$ $2x=47-1=46$ $x=\frac{46}{2}=23$ ...

$\sqrt{577600} = \sqrt{16*361*100} = \sqrt{16*19*19*10*10} = 4*19*10=760$

$z_{1} = r_{1}e^{i\theta_{1}}$ $z_{2} = r_{2}e^{i\theta_{2}}$ $ | z_{1} | = | z_{2} |   ...

Let $m$ and $n$ be the two numbers. $\frac{m+n}{2} = 10$ $m +n = 20$ -- ( 1 ) Geometric mean $\sq...

Let $x$ be the amount of work. Amount of work B can do in one day is $\frac{x}{15}$. So in 10 day...

Let cost price of table be $T$ Let cost price of chair be $C$ Selling price of table = $ T + \frac{...

Any number has 1 as a factor and itself as a factor. So we are looking for numbers that have exactl...

20, 25, 30       ...........................

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Spouse ...........

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If 2 digit number is 10m+n, then m and n are the digits. Given, $10m + n = (m+n)*8 - 5$  &nbs...

If you turn 90 clockwise followed by 135 anticlockwise, then the net turn is 45 ( 135 - 90 ) antic...

If you turn 90 clockwise followed by 135 anticlockwise, then the net turn is 45 ( 135 - 90 ) anticlo...

$ \frac {-4}{9} = \frac{-4 * -4}{9 * -4} = \frac{16}{-36} $

Mean is sum divided by number. $ \frac { (x+2)+(2x+3)+(3x+4)+(4x+5) }{4} = x + 2 $ $ 10x + 14 = 4(...

Mean is sum divided by number. $ \frac { (x+2)+(2x+3)+(3x+4)+(4x+5) }{4} = x + 2 $ $ 10x + 14 = 4(...

53 + y = -16 y = -16 -53 = -69 So other number is -69.