यदि (a=42q+31), तो (8a) को 42 से भाग देने पर शेषफल क्या होगा?
If (a=42q+31), what is the remainder when (8a) is divided by 42?
Explanation opens after your attempt
C. 38
Concept
The remainder of (a) is 31.
Why this answer is correct
For (8a), check \(8\times31=248\).
Exam Tip
\(248=42\times5+38\), so the remainder is 38. चरण 1: (a) का शेषफल 31 है। चरण 2: (8a) के लिए \(8\times31=248\) देखें। चरण 3: \(248=42\times5+38\), इसलिए शेषफल 38 है।
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