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Pick the odd one out
A)HSKP
B)DWFU
C)KQNN
D)EVHS

How to understand tough questions of number system

A frog is sitting on the vertex A of a square ABCD.it starts jumping to the immediately adjacent vertex on either side in random fashion and stops when it reaches point C. in how many ways can it reaches point C if it makes exactly 7 jumps? please explain the movement of frog . is it from A - B - C - D - A - B - C - D or from A - D - C - B - A - D - C - B or in any other way.Here, immediately adjacent vertex means B or D as the frog is sitting on vertex A .what is this line " either side in random fashion " mean according to the given question ? is it mean that the frog will move from point A to point B then come back to point A and then go to point D and again come back to point A ? The explanation in the answer predict that the frog can never reach Point C if it makes an odd number of jumps. if so, then how ? can frog reach point C if it makes an even number of jumps ? if yes, then how?

The following is known about three real numbers x ,y and z where x is more than or equal to -4 and less than or equal to 4 ; y is more than or equal to -8 and less than or equal to 2 and z is more than or equal to -8 and less than or equal to 2. Then the range of values that M = ( x*z )/ y can take is best represented by :

1. x is more than negative infinity and less than positive infinity
2. x is more than or equal to -16 and less than or equal to 8
3. x is more than or equal to -8 and less than or equal to 8
4. x is more than or equal to -16 and less than or equal to 16

Rs 99 is price of 20 ssc mock or only one mock test..?????

How to prepare GK apart from reading newspaper any book or some resource

because i have just started reading newspaper

what are the best books for speed maths which will help me in increasing the speed of calculation essential for the preparation of CAT?

which of the following is a perfect square : 100856 and 945729 ? Explain the easiest and fastest way of checking it.

if 2 < x < 4 and 1 < y < 3 then find the ratio of the upper limit for x + y and the lower limit of x - y.

some birds settled on the branches of a tree.first, they sat one to a branch and there was one bird too many.Next, they sat two to a branch and there was one branch too many. How many branches were there?