Hard Mathematics Chapter 1: Real Numbers Class 10 Level 2

यदि किसी संख्या को 15 से भाग देने पर शेषफल 10 है, तो उस संख्या में 5 जोड़ने पर शेषफल क्या होगा?

If a number leaves remainder 10 when divided by 15, what is the remainder after adding 5 to it?

Explanation opens after your attempt
Correct Answer

A. 0

Step 1

Concept

The number is (15q+10).

Step 2

Why this answer is correct

Adding 5 gives (15q+15=15(q+1)), so the remainder is 0.

Step 3

Exam Tip

When the remainder and added number together make the divisor, the new remainder becomes 0. चरण 1: संख्या (15q+10) है। चरण 2: 5 जोड़ने पर (15q+15=15(q+1)), इसलिए शेषफल 0 होगा। चरण 3: जब शेषफल और जोड़ी गई संख्या मिलकर भाजक बन जाएं, तो शेषफल 0 हो जाता है।

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