1
UPSC Civil Service Prelims Paper II 2021 (CSAT)
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language

Consider all 3-digit numbers (without repetition of digits) obtained using three non-zero digits which are multiples of 3. Let S be their sum.

Which of the following is/are correct?

1. S is always divisible by 74.

2. S is always divisible by 9.

select the correct answer using the code given below:

A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2
2
UPSC Civil Service Prelims Paper II 2021 (CSAT)
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
On a chess board, in how many different ways can 6 consecutive squares be chosen on the diagonals along a straight path ?
A
4
B
6
C
8
D
12
3
UPSC Civil Service Prelims Paper II 2021 (CSAT)
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
Using 2, 2, 3, 3, 3 as digits, how many distinct numbers greater than 30000 can be formed ?
A
3
B
6
C
9
D
12
4
UPSC Civil Service Prelims Paper II 2021 (CSAT)
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
There are 6 persons arranged in a row. Another person has to shake hands with 3 of them so that he should not shake hands with two consecutive persons. In how many distinct possible combinations can the handshakes take place ?
A
3
B
4
C
5
D
6
UPSC Civil Service Subjects
Comprehension
Data Interpretation and Sufficiency
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