Find the value of  $y$, if $\sqrt{18\times 50\times y}=168$.

Important Questions on Square and Square Root; Cube and Cube Root

MEDIUM

8th CBSE

IMPORTANT

Math Sight book>Chapter 3 - Square and Square Root; Cube and Cube Root>Test Paper 2>Q 1

Find the reciprocal of $\sqrt{\frac{81}{121}}$.

EASY

8th CBSE

IMPORTANT

Math Sight book>Chapter 3 - Square and Square Root; Cube and Cube Root>Test Paper 2>Q 2

If $x^2=20.25$, then find the value of $x$.

EASY

8th CBSE

IMPORTANT

Math Sight book>Chapter 3 - Square and Square Root; Cube and Cube Root>Test Paper 2>Q 3

$\sqrt[3]{27+64}=\sqrt[3]{27}+\sqrt[3]{64}$

EASY

8th CBSE

IMPORTANT

Math Sight book>Chapter 3 - Square and Square Root; Cube and Cube Root>Test Paper 2>Q 4

Find the cube root of $\frac{343}{0.027}$.

MEDIUM

8th CBSE

IMPORTANT

Math Sight book>Chapter 3 - Square and Square Root; Cube and Cube Root>Test Paper 2>Q 5

Using long division method, find the square root of $0.00069169$.

EASY

8th CBSE

IMPORTANT

Math Sight book>Chapter 3 - Square and Square Root; Cube and Cube Root>Test Paper 2>Q 6

Find the smallest number by which must $2,312$ must be multiplied to get a perfect square.

MEDIUM

8th CBSE

IMPORTANT

Math Sight book>Chapter 3 - Square and Square Root; Cube and Cube Root>Test Paper 2>Q 7

Find the edge of the cubical box if its volume is $110.592 {\mathrm{m}}^3$.

EASY

8th CBSE

IMPORTANT

Math Sight book>Chapter 3 - Square and Square Root; Cube and Cube Root>Test Paper 2>Q 8

If $n^3=4\frac{12}{125}$, then find the value of $n^2-1$.