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## Probability of Positive Integers being Coprime !

What is the probability that six randomly chosen positive integers are relatively prime ? Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)

## Positive integer value of x, y and z

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## The sunrise problem

Two women start walking at the sunrise, one from point A to B and another from point B to A. The pass each other exactly at noon. The first...
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## Solve for x

2x(x-6)-5(x+3) Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)

## Number of Trailing Zeros !

$\bg_white \large \\*\emph{\text{What is the maximum value of positive integer }} n \emph{\text{ such that }} 4798!!\emph{\text{ is exactly divisible by }}10^n\ ?\\*(\emph{\text{In other words, how many trailing zeros are there in }}4798!!\ ?)\\*\\*^+\[n!!\emph{\text{ denotes the double factorial or semi-factorial of a number n, defined as:}}\\*n!!=n(n-2)(n-4)...(n-2.\lceil n/2\rceil+2 )=\prod_{k=0}^{\lceil \frac{n}{2} \rceil-1}(n-2k)\\*\emph{\text{It should not be confused with the factorial function iterated twice i.e. }} n!! \neq(n!)!]$
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## Distance Between Two Places & Time Taken !

Manish and Rajni start from a place M at the same time to reach another place R. Manish travels at a constant speed of 21 kmph, while Rajni starts with...
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## Simultaneous eqn – iii

Solve the following simultaneous equations Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)
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## Simultaneous eqn – ii

3x + 4y -2z = 5 x – 3y – 3z = 4 2x – y – 4z = -8 Find x, y and z Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)
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## square-cube root

Find the value of x and y, solving the given root equation Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)
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## solve for x

Solve for X Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)
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## Dividing multivariate polynomials

Perform the following division Rate the problemHard (1)Spam (0)Helpful (0)Wow (0)
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## Age problem-2

One number is 3 times another number. If the larger number is diminished by 8, the resultant is 7 more than twice the smaller number. Find the numbers. ...
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## solve for x

(x+10)(x-3) = (-x-10)(6x+7) Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)
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## Find a x b x c x d

If a, b, c and d are unique digits and aaaa + bbb + cc + d = 1995, find the value of a * b * c *...
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## Find X

Find x Rate the problemHelpful (1)Spam (0)Hard (0)Wow (0)
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## Mathematic Algebraic Equations crossword

Solve the following crossword   Rate the problemWow (1)Spam (0)Helpful (0)Hard (0)
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## Inequality- Find least value of Y

If 7+y = |8|, find the least value of y, such that 10<= y <= 30. Rate the problemHelpful (1)Spam (0)Hard (0)Wow (0)
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## Solve for X

Solve for the value of X Rate the problemSpam (1)Hard (0)Helpful (0)Wow (0)
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## distance and time

In a race of 200 m, A can beat B by 31 m and C by 18 m. In a race of 350 m, C will beat B by:...
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## ALGEBRA

Then find the value of ( x + 1/x).   a.  2                        b.   3       ...
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## Completion of square

Solve the given equations by completing squares. Please explain every single step for me. Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)
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## Find the numbers

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## Algebra

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## solve.

Simran started a software business by investing Rs. 50,000. After six months, Nanda joined her with a capital of Rs. 80,000. After 3 years, they earned a profit of...
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## aigebra

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## Percentage

A firm increases salaries of employees by 15% . Modiri ,Shadi and Patiko are employed by the firm. A. Modiri earned 4500 before the much will he earn...
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## Question

The dimensions of a rectangular metal box are 3 cm, 5 cm and 8 cm. If the first two dimensions are increased by the same number of centimeters while...
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## Solve

One dimension of a cube is increased by one inchto form of a rectangular block. Suppose that the volume of the new block is 150 cubic inches. Find the...
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## Find the sum of A, B, C, D

What is sum of A, B, C, D if digits are all different ? A. 23 B. 22 C. 18 D. 16 E. 14 Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)
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## Sequence

-20 , -16 , -12 , -8 …. In the sequence above, each term after the first is 4 greater than the preceding term. Which of the following could...
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## contest R2 Q9

Given the above condition find a:b Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)
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