Number System · Basic Numeracy · UPSC Civil Service

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MCQ (Single Correct Answer)

UPSC Civil Service Prelims Paper II 2023 (CSAT)
Consider the following in respect of prime number p and composite number c. 1. $\frac{\mathrm{p}+\mathrm{c}}{\mathrm{p}-\mathrm{c}}$ can be even. 2....
UPSC Civil Service Prelims Paper II 2023 (CSAT)
Let x be a positive integer such that 7x + 96 is divisible by x. How many values of x are possible?
UPSC Civil Service Prelims Paper II 2023 (CSAT)
A number N is formed by writing 9 for 99 times. What is the remainder if N is divided by 13?
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