1
UPSC Civil Service Prelims Paper II 2024 (CSAT)
+2.5
-0.833

On January 1st, 2023, a person saved ₹1. On January 2nd, 2023, he saved ₹2 more than that on the previous day. On January 3rd, 2023, he saved ₹2 more than that on the previous day and so on. At the end of which date was his total savings a perfect square as well a perfect cube?

A

7th January, 2023

B

8th January, 2023

C

9th January, 2023

D

Not possible

2
UPSC Civil Service Prelims Paper II 2024 (CSAT)
+2.5
-0.833

What is the sum of the first 28 terms in the following sequence?

1, 1, 2, 1, 3, 2, 1, 4, 3, 2, 1, 5, 4, 3, 2, ...

A

83

B

84

C

85

D

86

3
UPSC Civil Service Prelims Paper II 2024 (CSAT)
+2.5
-0.833

What will come in place of * in the sequence 3, 14, 39, 84, *, 258?

A

150

B

155

C

160

D

176

4
UPSC Civil Service Prelims Paper II 2023 (CSAT)
+2.5
-0.833
40 children are standing in a circle and one of them (say child-1) has a ring. The ring is passed clockwise. Child-1 passes on to child-2, child-2 passes on to child-4, child-4 passes on to child-7 and so on. After how many such changes (including child-1) will the ring be in the hands of child-1 again?
A
14
B
15
C
16
D
17
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