If a number leaves remainder 9 when divided by 11, what is the remainder when its square is divided by 11?
Answer and explanation
Correct answer: 4
Step 1: The square remainder comes from dividing (9^2=81) by 11. Step 2: (81=11\times7+4), so the remainder is 4. Step 3: In square questions, square the remainder instead of the whole number.
Frequently asked questions
What is the correct answer to this question?
4
Why is this the correct answer?
Step 1: The square remainder comes from dividing (9^2=81) by 11. Step 2: (81=11\times7+4), so the remainder is 4. Step 3: In square questions, square the remainder instead of the whole number.
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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