Try getting each and every solution in the very 1st attempt itself. Avoid risky speed.
Just in case you see any mod around, please request him to make this thread sticky.
Good Luck to all :-)
Let x, y, z be prime numbers in the arithmetic progression such that x > y > z. Which among the following is always true?
(a) x z is divisible by 12
(b) x + y is divisible by 8
(c) xz - 1 is divisible by 7
(d) atleast two of the foregoin...
can tell me if there is a similar consolidated doc for 1 to 50 anywhere?
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An insect starts at vertex A of a certain cube and is trying to reach at vertex B, which is opposite A, in 5 or fewer steps where a step consists travelling along an edge from one vertex to another. The insect will stop as soon as it reaches B. The number of ways in whic...
For the Part A, Hot did you settle with the numbers 100 200 200 ... I mean was it just luck or was there a bit of the logic used ... I would be happy to understand if there is any logic used.
While attepting QQAD Practice test 3, i found a couple of questions that I could not figure out how to solve,
9) A cone height 2 m and raduis 1 m, Is placed inside a bigger cone of 2 m raduis, such that their axis are common and vertes of smaller cone is at the center of the base of ...
assume triangle third angle -> 0
the expression reduces to
2 side^2/side^2 -> 2 hence answer (b)
1+ 1/9+ 1/25 ........... + 1/4( 1+ 1/4 +1/9.........)
so S= S/4+ N
3/4S = N
S= 4/3 N
The roots of sinx/x are n*pi,viz +/- pi.+/-2pi and so on.
Hence,sinx/x = (1-x/pi) (1+x/pi) (1-x/2pi) (1+x/2pi) (1-x/3pi) (1+x/3pi)...
Coeff of x^2 here= -(1/pi^2 + 1/4pi^2 + 1/9pi^2 + ......