Question

A perfect cube of a number having 0 at its unit place, ends with _____ zeros.​

Answer 1

A perfect cube of a number having 0 at its unit place, ends with Three zeros.

Explanation:

${10}^{3} = 1000$

Perfect cube 10 with one zero, and its cube having three zero.

Answer 2

Answer :- 3 .

Explanation :-

Let us take some example by taking number having 0 at its unit place .

(10)³

→ 10 * 10 * 10

→ 1000 = 3 zeros in last .

(20)³

→ (2 * 10)³

→ 2³ * 10³

→ 8 * 1000

→ 8000 = 3 zeros in last .

(80)³

→ (8 * 10)³

→ 8³ * 10³

→ 512 * 1000

→ 512000 = 3 zeros in last .

therefore, we can conclude that, A perfect cube of a number having 0 at its unit place ends with 3 zeros .

Extra :-

• A perfect cube of a number having two zeros in last ends with 6 zeros .
• A perfect cube of a number having three zeros in last ends with 9 zeros .
• A perfect cube of a number having n zeros in last ends with 3n zeros .

Learn more :-

prove that √2-√5 is an irrational number

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