# Elementary Algebra · Basic Numeracy · UPSC Civil Service

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## MCQ (Single Correct Answer)

UPSC Civil Service Prelims Paper II 2023 (CSAT)
If ABC and DEF are both 3-digit numbers such that A, B, C, D, E and F are distinct non-zero digits such that ABC + DEF = 1111, then wha...
UPSC Civil Service Prelims Paper II 2023 (CSAT)
Three of the five positive integers p, q, r, s, t are even and two of them are odd (not necessarily in order). Consider the following : 1. p + q + r ...
UPSC Civil Service Prelims Paper II 2023 (CSAT)
If p, q, r and s are distinct single digit positive numbers, then what is the greatest value of (p + q) (r + s)?
UPSC Civil Service Prelims Paper II 2023 (CSAT)
Each digit of a 9-digit number is 1. It is multiplied by itself. What is the sum of the digits of the resulting number?
UPSC Civil Service Prelims Paper II 2023 (CSAT)
Let pp, qq and rr be 2-digit numbers where p < q < r. If pp + qq + rr = tt0, where tt0 is a 3-digit number ending with zero, consider the follow...
UPSC Civil Service Prelims Paper II 2023 (CSAT)
Question: Is (p + q - r) greater than (p - q + r), where p, q and r are integers ? Statement-1: (p - q) is positive. Statement-2: (p - r) is negativ...
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