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Class 8 Maths
Cube And Cube Roots
Quiz 1
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Which of the following numbers is a perfect cube?
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243
0%
343
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391
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1640
Which of the following expressions is not a perfect cube?
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25 x 10 x 32
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125 x 8 x 125
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15 x 8 x 25 x 9
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49 x 21 x 27 x 8
The expression is $ \sqrt[3]{8} + \sqrt[3]{1728} - \sqrt[3]{27}$
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10
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11
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12
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14
The length of each side of a cube if its volume is 2197 cm3
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19 cm
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17 cm
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11 cm
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13 cm
The smallest number by which 1323 must be multiplied to obtain a perfect cube?
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3
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7
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2
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5
The smallest number by which 6561 must be divided to obtain a perfect cube?
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3
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9
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7
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2
if $ \sqrt[3]{175616} =56$, then $ \sqrt[3]{175.616} + \sqrt[3]{.175616} + \sqrt[3]{.000175616}$
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6.216
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62.16
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.6216
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.06216
The one’s digit of the cube of 23 is
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6
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7
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3
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9
The expression is $ \sqrt[3]{27} + \sqrt[3]{.064} - \sqrt[3]{.008}$
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3.8
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3.6
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3.0
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3.2
$\sqrt[3]{\sqrt {64}}$ is
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4
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2
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3
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8
Which of the following numbers is not a perfect cube?
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729
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512
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1332
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None of these
id $\frac {p}{q}+ \frac {q}{p}=1$ , then the value of $p^3 + q^3$ is
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1
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-1
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0
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2
$\sqrt[3]{1000}$ is
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1
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10
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100
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None of these
Find the length of each side of a cube if its volume is 1728 cube cm.
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14
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16
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12
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9
which is correct?
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There is no cube root of a negative integer.
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The cube of a one-digit number cannot be a two-digit number.
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The cube of 0.2 is 0.008
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None of these
if $\sqrt[3]{x}= \sqrt[3]{2} \times \sqrt[3]{5} \times \sqrt[3]{7}$, then x is
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70
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55
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60
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65
The difference between two perfect cubes isIf the cube root of the smaller of the two numbers is 3, The cube root of the larger number.
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5
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6
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7
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4
The value of $\sqrt[3]{3^4 \sqrt {3^{-6} \sqrt{3^8}}}$ is
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3
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1/3
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9
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1/9
Cube of a number ending in 7 will end in the digit
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1
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7
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3
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9
Choose the incorrect ?
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For an integer p, $p^3$ is always greater than $p^2$
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The cube root of 27000 is 300.
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Cube of an odd number is odd
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None of the above
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