Hard Mathematics Chapter 1: Real Numbers Class 10 Level 1

यदि (a=20q+19), तो (a+1) का 20 से भाग देने पर शेषफल क्या होगा?

If (a=20q+19), what is the remainder when (a+1) is divided by 20?

Explanation opens after your attempt
Correct Answer

A. 0

Step 1

Concept

The remainder of (a) is 19.

Step 2

Why this answer is correct

Adding 1 gives (20q+20=20(q+1)), so the remainder is 0.

Step 3

Exam Tip

Adding 1 to a remainder one less than the divisor gives the next multiple. चरण 1: (a) का शेषफल 19 है। चरण 2: 1 जोड़ने पर (20q+20=20(q+1)), इसलिए शेषफल 0 है। चरण 3: भाजक से एक कम शेषफल में 1 जोड़ने पर अगला गुणज बनता है।

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The correct answer is A. 0.

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