Aptitude · all questions

Simplification
practice.

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

279

Questions

10/14

Page

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Q181

If

(a + \frac{1}{a}) = 6,

then

(a^{4} + \frac{1}{a ^{4}})

= ?

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Q182

If

(x - \frac{1}{x}) = 21,

then the value of

(x^{2} + \frac{1}{x ^{2}})

(x + \frac{1}{x})

is = ?

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Q183

On simplification the value of

1 -

\frac{1}{1 + 2} +

\frac{1}{1 - 2}

is = ?

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Q184

If

(a^{4} + \frac{1}{a ^{4}}) = 1154,

then the value of

(a^{3} + \frac{1}{a ^{3}})

is = ?

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Q185

If

(x + \frac{1}{x}) = 13,

then the value of

(x^{3} - \frac{1}{x ^{3}})

is = ?

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Q186

If

(4 b^{2} + \frac{1}{b ^{2}}) = 2,

then

(8 b^{3} + \frac{1}{b ^{3}})

= ?

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Q187

\frac{20 + 8 \times 0.5}{20 - ?} = 12

Find the value in place of (?)

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Q188

Let 0 < x < 1, then the correct inequality is = ?

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Q189

If

\frac{a}{b} + \frac{b}{a} = 2,

then the value of (a - b) is = ?

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Q190

24.96² ÷ (34.11 ÷ 20.05) + 67.96 - 89.11 = ?

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Q191

If

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

and

\frac{1 - y}{1 + y} = \frac{b}{a},

then the value of

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

= ?

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Q192

200 ÷ 25 × 4 + 12 - 3 = ?

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Q193

Evaluate :

\frac{( 923 - 347 )}{?} = 32

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Q194

1559.95 - 7.99 × 24.96 - ?² = 1154

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Q195

Solve

1 \frac{4}{5} + 20 - 280 \div 25 = ?

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Q196

{(64 - 38) \times 4} \div 13 = ?

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Q197

If x + y = 2a, then the value of

\frac{a}{x - a} + \frac{a}{y - a} is = ?

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Q198

421 ÷ 35 × 299.97 ÷ 25.05 = ?²

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Q199

Simplify :

\root 3 \of - 2197 \times

\root 3 \of - 125 \div

\root 3 \of \frac{27}{512}

= ?

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Q200

Solve : 128.43 + 30.21 + ? = 173

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