If a number leaves remainder 3 when divided by 8, what is the remainder when its cube is divided by 8?
Answer and explanation
Correct answer: 3
Step 1: The cube remainder comes from (3^3=27). Step 2: (27=8\times3+3), so the remainder is 3. Step 3: In power questions, keep the calculation small by using the remainder.
Frequently asked questions
What is the correct answer to this question?
3
Why is this the correct answer?
Step 1: The cube remainder comes from (3^3=27). Step 2: (27=8\times3+3), so the remainder is 3. Step 3: In power questions, keep the calculation small by using the remainder.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Euclid’s Division Lemma.
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