Aptitude · all questions

Algebra
practice.

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

548

Questions

3/28

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Q41

Open question

\frac{7 - 2}{7 + 2} = a 7 + b,

then the value of a is?

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Q42

Open question

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

and

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

then

c + \frac{1}{a}

is equal to?

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Q43

Open question

If x + y = 7, then the value of x³ + y³ + 21xy is?

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Q44

Open question

If ⊗ is an operation such that a ⊗ b = 2a when a > b, a + b when a < b, a² when a = b, then

[\frac{( 5 \otimes 7 ) + ( 4 \otimes 4 )}{3 ( 5 \otimes 5 ) - ( 15 \otimes 11 ) - 3}]

is equal to?

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Q45

Open question

If (125)^x = 3125, then the value of x is?

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Q46

Open question

n + \frac{2}{3} n + \frac{1}{2} n + \frac{1}{7} n = 97,

then the value of n is?

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Q47

Open question

x - \frac{1}{x} = 4,

then

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

is equal to?

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Q48

Open question

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

then the value of

8 b^{3} + \frac{1}{b ^{3}} is?

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Q49

Open question

If (\frac{3}{5})^{3} \times (\frac{3}{5})^{- 6} =

(\frac{3}{5})^{2 x - 1},

then x is equal to?

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Q50

Open question

\frac{3 + x + 3 - x}{3 + x - 3 - x} = 2,

then x is equal to?

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Q51

Open question

x = \frac{3}{2},

then the value of

(\frac{1 + x + 1 - x}{1 + x - 1 - x}) is = ?

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Q52

Open question

4^{4 x + 1} = \frac{1}{64},

then the value of x is?

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Q53

Open question

(5)^{7} \div (5)^{5} = 5^{P},

then the value of P is?

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Q54

Open question

If 1.5a = 0.04b then

\frac{b - a}{b + a}

is equal to?

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Q55

Open question

\frac{x ^{2} - x + 1}{x ^{2} + x + 1} = \frac{3}{2},

then the value of

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

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Q56

Open question

x = 3 + 8,

then

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

is equal to?

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Q57

Open question

x = 5 + 26,

then the value of

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

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Q58

Open question

x + \frac{9}{x} = 6,

then

(x^{2} + \frac{9}{x ^{2}})

is equal to?

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Q59

Open question

x + \frac{1}{x} = 3,

then the value of

\frac{x ^{3} + \frac{1}{x}}{x ^{2} - x + 1} is?

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Q60

Open question

a + \frac{1}{a} + 1 = 0 (a \neq = 0),

then the value of

(a^{4} - a) is?

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Algebrapractice.

Algebra
practice.