The difference of 10 31 - 5 and 10 30 + p is divisible by 3 where p is a digit. How many values of p are possible?

UPSC CDS II 2024 Math Paper

Question : 75 of 100

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The difference of 10³¹ - 5 and 10³⁰+ p is divisible by 3 where p is a digit. How many values of p are possible?

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