
The cube of a single digit number may be a ________ digit number.
A. Single
B. Double
C. Three
D. All of these
Answer
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Hint: We know that single digit numbers are 0, 1, 2, 3 . . . . 9. Also, the cube of a number means the number multiplied by itself 3 times. If we have then,
So, we will find the cube of a number between 0 to 9 and then, we will find the required value.
Complete step by step solution:
We have been asked to find the cube of a single digit number containing how many digits.
We have single digit numbers 0, 1, 2, 3 . . . . . . 9.
We know that the cube of a number means the number multiplied by itself three times. If we have then,
Now, we will find the cube of numbers from 0 to 9 as follows:
It is a single digit number.
It is a single digit number.
It is a single digit number.
It is a two digit number.
It is also a two digit number.
It is a three digit number.
It is also a three digit number.
It is also a three digit number.
It is also a three digit number.
It is also a three digit number.
Hence, the cube of a single digit number may be a single, double and three digit number.
Therefore, the correct option is D.
Note: You can also remember the point that a cube of any number contains a maximum digit number equal to the product of 3 and the digit of the number is perfect. There is a great possibility that the student might choose option C. Three as the right answer using logic that the cube of a single digit number is essentially multiplying that number three times with itself. So, it will be a three digit number. But, this is just illogical. It is necessary to get the final result of multiplication of that number three times and then come to a conclusion. So, the best way is to check the cube of the smallest and largest single digit number, i.e 0 and 9. Cube of 0 is a single digit number and cube of 9 is a three digit number, so definitely, options A, B, C are correct.
So, we will find the cube of a number between 0 to 9 and then, we will find the required value.
Complete step by step solution:
We have been asked to find the cube of a single digit number containing how many digits.
We have single digit numbers 0, 1, 2, 3 . . . . . . 9.
We know that the cube of a number means the number multiplied by itself three times. If we have
Now, we will find the cube of numbers from 0 to 9 as follows:
It is a single digit number.
It is a single digit number.
It is a single digit number.
It is a two digit number.
It is also a two digit number.
It is a three digit number.
It is also a three digit number.
It is also a three digit number.
It is also a three digit number.
It is also a three digit number.
Hence, the cube of a single digit number may be a single, double and three digit number.
Therefore, the correct option is D.
Note: You can also remember the point that a cube of any number
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