EASY
UPSC CDS
IMPORTANT
Earn 100

If is the harmonic mean between and then the value of is :
(a)
(b)
(c)
(d)

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Important Questions on UPSC CDS (II) Previous Year Paper 2018
EASY
UPSC CDS
IMPORTANT
The sum of all possible products taken two at a time out of the numbers is:

MEDIUM
UPSC CDS
IMPORTANT
The remainder when is divided by is equal to

MEDIUM
UPSC CDS
IMPORTANT
If, then the value of
is

MEDIUM
UPSC CDS
IMPORTANT
What is the principal amount which earns ₹ as compound interest for the second year at per annum?

EASY
UPSC CDS
IMPORTANT
In an examination, of the candidates failed in English, failed in Hindi and failed in both the subjects. The percentage of candidates who passed in both English and Hindi is:

EASY
UPSC CDS
IMPORTANT
A train long passes a platform long in . The speed of the train is:

EASY
UPSC CDS
IMPORTANT
A cyclist covers his first km at an average speed of kmph, another km at an average speed of kmph, and the last km at an average speed of kmph. Then the average speed of entire journey is:

MEDIUM
UPSC CDS
IMPORTANT
In a race of m, beats by m. while in another race of m, beats by m, Speed of is equal to that of (Assume that and run with unifrom speed in all the events). If and participate in a race of m, then which one of the following is correct?
