Achieve Indian Army Agniveer Mathematics Practice Book>Chapter 10 - Algebraic Expressions>Exercise 1>Q 28

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There are deer and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200. How many peacocks are there?

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Important Questions on Algebraic Expressions

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IMPORTANT

Achieve Indian Army Agniveer Mathematics Practice Book>Chapter 10 - Algebraic Expressions>Exercise 1>Q 29

Find the value of

x + 2 x + 3 x

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Achieve Indian Army Agniveer Mathematics Practice Book>Chapter 10 - Algebraic Expressions>Exercise 1>Q 30

Find the value of

3 x + 2 x :

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Achieve Indian Army Agniveer Mathematics Practice Book>Chapter 10 - Algebraic Expressions>Exercise 1>Q 31

If

x^{2} + k x + k = 0

has repeated roots, then the value of

k

will satisfy:

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Achieve Indian Army Agniveer Mathematics Practice Book>Chapter 10 - Algebraic Expressions>Exercise 1>Q 32

One of the roots of the equation is $x^{2} - 4 x + k = 0$ is $x = 3 .$ Find the other root?

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Indian Army Agniveer

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Achieve Indian Army Agniveer Mathematics Practice Book>Chapter 10 - Algebraic Expressions>Exercise 1>Q 33

If one root of the equation

4 x^{2} - 2 x + (k - 4) = 0

be the reciprocal of the other, then

k = ?

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Achieve Indian Army Agniveer Mathematics Practice Book>Chapter 10 - Algebraic Expressions>Exercise 1>Q 34

If

9 x^{2} - 6 x + 1 = 0

, then the value of

27 x^{3} + {(27 x^{3})}^{- 1}

will be:

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Achieve Indian Army Agniveer Mathematics Practice Book>Chapter 10 - Algebraic Expressions>Exercise 1>Q 35

If

x + \frac{81}{x} = 18

where

x > 0

, then the value of

x^{2} + \frac{162}{x^{2}}

is:

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Achieve Indian Army Agniveer Mathematics Practice Book>Chapter 10 - Algebraic Expressions>Exercise 1>Q 36

If

α, β

are the roots of the quadratic equation

x^{2} - (3 + 2^{\sqrt{l o g_{2} 3}} - 3^{\sqrt{l o g_{3} 2}}) x - 2 (3^{l o g_{3} 2} - 2^{l o g_{2} 3}) = 0,

then the value of

α^{2} + α β + β^{2}

is equal to: