1
UPSC Civil Service Prelims Paper II 2023 (CSAT)
+2.5
-0.833
What is the number of selections of 10 consecutive objects in clockwise direction out of 12 objects arranged in a circle?
A
3
B
11
C
12
D
66
2
UPSC Civil Service Prelims Paper II 2023 (CSAT)
+2.5
-0.833
In an examination, the maximum marks for each of the four papers namely P, Q, R and S are 100. Marks scored by the students are in integers. A student can score 99% in n different ways. What is the value of n?
A
16
B
17
C
23
D
35
3
UPSC Civil Service Prelims Paper II 2023 (CSAT)
+2.5
-0.833
A flag has to be designed with 4 horizontal stripes using some or all of the colours red, green and yellow. What is the number of different ways in which this can be done so that no two adjacent stripes have the same colour?
A
12
B
18
C
24
D
36
4
UPSC Civil Service Prelims Paper II 2023 (CSAT)
+2.5
-0.833
There are five persons P, Q, R, S and T each one of whom has to be assigned one task. Neither P nor Q can be assigned Task-1. Task-2 must be assigned to either R or S. In how many ways can the assignment be done?
A
6
B
12
C
18
D
24
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