1
UPSC Civil Service Prelims Paper II 2022 (CSAT)
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
There are two containers X and Y. X contains 100 ml of milk and Y contains 100 ml of water. 20 ml of milk from X is transferred to Y. After mixing well, 20 ml of the mixture in Y is transferred back to X. If m denotes the proportion of milk in X and n denotes the proportion of water in Y, then which one of the following is correct?
A
m = n
B
m > n
C
m < n
D
Cannot be determined due to insufficient data
2
UPSC Civil Service Prelims Paper II 2022 (CSAT)
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language

If

15 × 14 × 13 × ... × 3 × 2 × 1 = 3m × n

where m and n are positive integers, then what is the maximum value of m?

A
7
B
6
C
5
D
4
3
UPSC Civil Service Prelims Paper II 2022 (CSAT)
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
What is the value of X in the sequence 2, 12, 36, 80, 150, X?
A
248
B
252
C
258
D
262
4
UPSC Civil Service Prelims Paper II 2022 (CSAT)
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
One non-zero digit, one vowel and one consonant from English alphabet (in capital) are to be used in forming passwords, such that each password has to start with a vowel and end with a consonant. How many such passwords can be generated?
A
105
B
525
C
945
D
1050
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