When a number is divided by 8, it leaves a remainder of 5. If this number is multiplied by 3, what will be the remainder when the result is divided by 8? (2023)
Practice Questions
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When a number is divided by 8, it leaves a remainder of 5. If this number is multiplied by 3, what will be the remainder when the result is divided by 8? (2023)
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Multiplying the number by 3 gives (8k + 5) * 3 = 24k + 15, which gives a remainder of 7 when divided by 8.
Questions & Step-by-step Solutions
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Q
Q: When a number is divided by 8, it leaves a remainder of 5. If this number is multiplied by 3, what will be the remainder when the result is divided by 8? (2023)
Solution: Multiplying the number by 3 gives (8k + 5) * 3 = 24k + 15, which gives a remainder of 7 when divided by 8.
