यदि (u=15q+8), तो \(u^2-u\) को 15 से भाग देने पर शेषफल क्या होगा?

If (u=15q+8), what is the remainder when \(u^2-u\) is divided by 15?

Explanation opens after your attempt
Correct Answer

B. 11

Step 1

Concept

The remainder of (u) is 8.

Step 2

Why this answer is correct

The remainder of \(u^2-u\) comes from \(8^2-8=56\).

Step 3

Exam Tip

\(56=15\times3+11\), so the remainder is 11. चरण 1: (u) का शेषफल 8 है। चरण 2: \(u^2-u\) का शेषफल \(8^2-8=56\) से मिलेगा। चरण 3: \(56=15\times3+11\), इसलिए शेषफल 11 है।

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Mathematics Answer, Explanation and Revision Hints

यदि (u=15q+8), तो \(u^2-u\) को 15 से भाग देने पर शेषफल क्या होगा? / If (u=15q+8), what is the remainder when \(u^2-u\) is divided by 15?

Correct Answer: B. 11. Explanation: चरण 1: (u) का शेषफल 8 है। चरण 2: \(u^2-u\) का शेषफल \(8^2-8=56\) से मिलेगा। चरण 3: \(56=15\times3+11\), इसलिए शेषफल 11 है। / Step 1: The remainder of (u) is 8. Step 2: The remainder of \(u^2-u\) comes from \(8^2-8=56\). Step 3: \(56=15\times3+11\), so the remainder is 11.

Which concept should I revise for this Mathematics MCQ?

The remainder of (u) is 8.

What exam hint can help solve this Mathematics question?

\(56=15\times3+11\), so the remainder is 11. चरण 1: (u) का शेषफल 8 है। चरण 2: \(u^2-u\) का शेषफल \(8^2-8=56\) से मिलेगा। चरण 3: \(56=15\times3+11\), इसलिए शेषफल 11 है।