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Variance = (Standard deviation)2
17.64 = (Standard deviation)2
Standard deviation = √(17.64) = 4.2
Some of the people are standing in a line and all are facing south direction. How many people standing in a line?
I.O sits fourth to the extrem...
In the family of five members there are two married couples and three generations, who is the wife of F?
I. F is the only child of E and D. G i...
Five friends Harsha, Geeta, Naman, Suraj and Anuj are seated around a circular table facing the centre. Who sits to the immediate right of Suraj?
How many female members are there in family of ten members?
Statement I: Z is only son of Y, who is son-in-law of B. W is only daughter of C. L...
There are six members A, B, C, D, E, F in the family of three generations. There are couples in each generation of the family. How is A related to E?
In a certain code language ‘first letter represents second’ is written as ‘7$4@’. What is the code for ‘first’?
I. In a certain code ...
What is the code for ‘auto’ in the code language in which ‘giant segment the spot’ is written as ‘sag map pap rap’?<...
Who amongst A, B, C, D and E is the second tallest?
I.A is shorter than B, E is not the shortest.
II.C is shorter than A, D is not the shortest.
There are six members G, H, I, J, K, L in the family of three generations. There are couples in each generation of the family. How is G related to K?
Six persons T, U, V, W, X, and Y are sitting in a straight row facing north but not necessarily in the same order. Who sits third to the right of T?
...