# State true or false(i) Cube of any odd number is even(ii) A perfect cube does not end with two zeros(iii) If square of a number ends with 5, then its cube ends with 25(iv) There is no perfect cube which ends with 8(v) The cube of a two digit number may be a three digit number(vi) The cube of a two digit number may have seven or more digits(vii) The cube of a single digit number may be a single digit number

(i) False.

When we will calculate the cube of an odd number, we will get an odd number as the result because the unit place digit of an odd number is odd and we are multiplying three odd numbers.

Hence, the product will be again an odd number

For example, the cube of 5 (i.e., an odd number) is 125, which is again an odd number

(ii) True.

Perfect cube will end with a certain number of zeroes that are always a perfect multiple of 3

For example, the cube of 10 is 1000 and there are 3 zeroes at the end of it. The cube of 100 is 1000000 and there are 6 zeroes at the end of it and so on.

(iii) False.

It is not every time compulsory that if the square of a number ends with 5, then its cube will end with 25

For example, the square of 25 is 625 and 625 has its unit digit as 5. The cube of 25 is 15625. However, the square of 35 is 1225 and also has its unit place digit as 5 but the cube of 35 is 42875 which does not end with 25

(iv) False.

There are several cubes that ends with 8. The cubes of all the numbers with their unit place digit as 2 will end with 8

The cube of 2 is 8 and the cube of 22 is 10648

(v) False.

The smallest two-digit natural number is 10, and the cube of 10 is 1000 which has 4 digits in it

(vi) False.

The largest two-digit natural number is 99, and the cube of 99 is 970299 which has 6 digits in it. Hence, the cube of any two-digit number cannot have 7 or more digits in it

(vii)True

As we know that the cubes of 1 and 2 are 1 and 8 respectively.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos  Quiz | Cubes and Cube Roots41 mins  Quiz | Cubes and Cube Roots41 mins  Extra Qs. of Cubes and Cube Roots43 mins  Quiz | Practice More Questions on Cube and Cube Roots27 mins  Champ Quiz | Cube and Cube Roots46 mins  Champ Quiz | Square Roots and Cube roots40 mins  NCERT | Imp. Qs. on Cubes and Cube Roots47 mins  Quiz | Solve Imp. Qs. of Cube and Cube Roots39 mins  Champ Quiz | Cubes and Cube Roots33 mins  Goprep Genius Quiz | Squares and Square Roots34 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation view all courses 