Question

24389 is a perfect cube. Find the units digit of its cube
a)3
b) 7
C) 9
d) 1
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Answer 1

Answer:

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your correct answer is 9

⋆Since 24389 is a whole number, it is a perfect cube. The nearest previous perfect cube is 21952 and the nearest next perfect cube is 27000 . 24389 is said to be a perfect cube because 29 x 29 x 29 is equal to 24389.

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Answer 2

Answer:

Option C is correct .

Step-by-step explanation:

To find this you have to first look at the unit digit of the number 24389 i.e. 9

To find the unit digit of its cube

You have to take 9 and cube it

I.e. 9^3 = 729

And then check out the unit digit of 729 I.e. 9

Hence,the units digit of the number 24389 cube is 9.

So, option C is correct.

Hope this will help you

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