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)…