Aptitude · all questions

Algebra
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

548

Questions

7/28

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Q121

Open question

If x : y = 4 : 15 then the value of

(\frac{x - y}{x + y})

is?

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Q122

Open question

If (x - 3)² + (y - 5)² + (z - 4)² = 0, then the value of

\frac{x ^{2}}{9} + \frac{y ^{2}}{25} + \frac{z ^{2}}{16}

is?

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Q123

Open question

x varies inversely as square of y. Given that y = 2 for x = 1, the value of x for y = 6 will equal to?

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Q124

Open question

If a² + b² + c² + 3 = 2(a - b - c), then the value of 2a - b + c is?

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Q125

Open question

\frac{4 x}{3} + 2P = 12

for what value of P, x = 6?

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Q126

Open question

The value of \frac{4 + 3 3}{7 + 4 3} is?

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Q127

Open question

a =

6

5

, b =

5

- 2, c = 2 -

3

then point out the correct alternative among the four alternatives given below ?

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Q128

Open question

x = 5 - 21,

then the value of

\frac{x}{32 - 2 x - 21}

is?

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Q129

Open question

The value of

(x^{b + c})^{b - c}

\times

(x^{c + a})^{c - a}

\times

(x^{a + b})^{a - b}

is?

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Q130

Open question

\frac{x}{a} = \frac{1}{a} - \frac{1}{x},

then the value of x - x² is?

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Q131

Open question

x + \frac{1}{x} = 99,

find the value of

\frac{100 x}{2 x ^{2} + 2 + 102 x}

is?

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Q132

Open question

\frac{4 x - 3}{x}

\frac{4 y - 3}{y}

\frac{4 z - 3}{z} = 0,

then the value of

\frac{1}{x} + \frac{1}{y} + \frac{1}{z}

is?

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Q133

Open question

\frac{x y}{x + y} = a,

\frac{x z}{x + z} = b

and

\frac{y z}{y + z} = c,

where a, b, c are all non - zero numbers, then x equals to?

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Q134

Open question

If x and y are positive real numbers and xy = 8, then the minimum value of 2x + y is?

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Q135

Open question

If a² - 4a - 1 = 0 then value of

a^{2} + \frac{1}{a ^{2}} + 3 a - \frac{3}{a}

is?

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Q136

Open question

The minimum value of (x - 2)(x - 9) is?

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Q137

Open question

x = 3 - 5,

then the value of x² - 16x + 6 is?

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Q138

Open question

If x² = y + z, y² = z + x, z² = x + y, then the value of

\frac{1}{x + 1}

\frac{1}{y + 1}

\frac{1}{z + 1} = ?

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Q139

Open question

If a + b + c = 0, then the value of

(\frac{a + b}{c} + \frac{b + c}{a} + \frac{c + a}{b})

(\frac{a}{b + c} + \frac{b}{c + a} + \frac{c}{a + b}) = ?

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Q140

Open question

If a, b, c are non - zero

a + \frac{1}{b} = 1

and

b + \frac{1}{c} = 1,

then the value of abc is?

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Algebrapractice.

Algebra
practice.