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A number N is formed by writing 9 for 99 times. What is the remainder if N is divided by 13?
(UPSC CSAT - 2023) 11 9 7 1 Solution: Ans.(1.) As we know 1001 =…
If p, q, r and s are distinct single digit positive numbers, then what is the greatest value of (p+q)(r+s) ?
(UPSC CSAT - 2023) 230 225 224 221 Solution: Ans.(2) To be (p+q)(r+s) greatest, (p+q)…
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Let x be a positive integer such that 7x + 96 is divisible by x. How many values of x are possible ?
(UPSC CSAT - 2023) 10 11 12 Infinitely many Solution: Ans.(3) If (7x + 96)…
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Number System PYQ 2023 (11-17)
Q.11) What is the unit digit in the expansion of (57242)9×7×5×3×1 (UPSC CSAT…
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Number System PYQ 2023 (1-10)
UPSC CSAT Question on Number System with 2023 questions included , with solution