1
UPSC Civil Service Prelims Paper II 2022 (CSAT)
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
A person X wants to distribute some pens among six children A, B, C, D, E, and F. Suppose A gets twice the number of pens received by B, three times that of C, four times that of D, five times that of E and six times that of F. What is the minimum number of pens X should buy so that the number of pens each one gets is an even number?
A
147
B
150
C
294
D
300
2
UPSC Civil Service Prelims Paper II 2022 (CSAT)
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language

Let A, B and C represent distinct non-zero digits. Suppose x is the sum of all possible 3-digit numbers formed by A, B and C without repetition.

Consider the following statements :

1. The 4-digit least value of x is 1332.

2. The 3-digit greatest value of x is 888.

Which of the above statements is/are correct?

A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2
3
UPSC Civil Service Prelims Paper II 2022 (CSAT)
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
There is a numeric lock which has a 3-digit PIN. The PIN contains digits 1 to 7. There is no repetition of digits. The digits in the PIN from left to right are in decreasing order. Any two digits in the PIN differ by at least 2. How many maximum attempts does one need to find out the PIN with certainty?
A
6
B
8
C
10
D
12
4
UPSC Civil Service Prelims Paper II 2022 (CSAT)
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
There are eight equidistant points on a circle. How many right-angled triangles can be drawn using these points as vertices and taking the diameter as one side of the triangle?
A
24
B
16
C
12
D
8
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