Question Text
Question 1 :
Parikshit makes a cuboid of plasticine of sides 5 cm, 2 cm, 5 cm. How many such cuboids will he need to form a cube?
Question 5 :
Find the smallest number by which 243 must be multiplied to obtain a perfect cube.
Question 7 :
If the volume of a cube is $125cm^3$ what would be the length of its side?(In cm)
Question 8 :
Find the smallest number by which 128 must be divided to obtain a perfect cube.
Question 11 :
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Which letter best represents the location of $\sqrt{25}$ on a number line?
Question 12 :
Find the square root of the perfect square we will get by adding least number to 1500.
Question 13 :
Check whether 1728 is a perfect cube by using prime factorisation.
Question 15 :
If m is the cube root of n, then n is
Question 17 :
State true or false : There is no square number between 50 and 60. Is it true or false ?
Question 18 :
Which among $43^2$, $67^2$, $52^2$, $59^2$ would end with digit 1?
Question 19 :
Find the Pythagorean triplet whose one of the numbers is 4.
Question 20 :
Each prime factor appears 3 times in its cube. Is it true or false ?